{"id":549410,"date":"2026-04-17T03:30:05","date_gmt":"2026-04-17T01:30:05","guid":{"rendered":"https:\/\/www.dynseo.com\/avc-definition-causes-et-facteurs-de-risque-dynseo-2\/"},"modified":"2026-04-17T03:31:16","modified_gmt":"2026-04-17T01:31:16","slug":"stroke-definition-causes-and-risk-factors-dynseo","status":"publish","type":"post","link":"https:\/\/www.dynseo.com\/en\/stroke-definition-causes-and-risk-factors-dynseo\/","title":{"rendered":"Stroke: Definition, Causes and Risk Factors | DYNSEO"},"content":{"rendered":"<p>[et_pb_section fb_built=&#8221;1&#8243; admin_label=&#8221;Article HTML&#8221; _builder_version=&#8221;4.16&#8243; custom_padding=&#8221;0px||0px||false|false&#8221; global_colors_info=&#8221;{}&#8221;][et_pb_row admin_label=&#8221;Contenu&#8221; _builder_version=&#8221;4.16&#8243; width=&#8221;100%&#8221; max_width=&#8221;100%&#8221; custom_padding=&#8221;0px||0px||false|false&#8221; global_colors_info=&#8221;{}&#8221;][et_pb_column type=&#8221;4_4&#8243; _builder_version=&#8221;4.16&#8243; 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color: #555; }\n.dbi-art-9d3028 a { color: #5e5ed7; }\n@media (max-width: 768px) {\n.dbi-art-9d3028 .article-header h1 { font-size: 1.8rem; }\n.dbi-art-9d3028 .stats-grid { grid-template-columns: 1fr; }\n.dbi-art-9d3028 .article-header { padding: 40px 15px; }\n.dbi-art-9d3028 .container { padding: 15px; }\n.dbi-art-9d3028 h2 { font-size: 1.5rem; }\n.dbi-art-9d3028 .comparison-table { font-size: 0.9rem; }\n}<\/p>\n<\/style>\n<div class=\"dbi-art-9d3028\">\n<article>\n<header class=\"article-header\">\n<div class=\"article-category\">\ud83e\udde0 Neurodegenerative diseases \u2014 Stroke Series<\/div>\n<h1>Stroke: definition, causes and risk factors<\/h1>\n<pee class=\"subtitle\">150,000 strokes per year in France \u2014 one every 4 minutes. Understanding what triggers this medical emergency and which risk factors can be controlled is the first step to protecting your brain.<\/pee>\n<\/header>\n<div class=\"container\">\n<div class=\"intro-paragraph\">\nA stroke (Cerebral Vascular Accident) kills 1.9 million neurons per minute. It is the leading cause of acquired disability in adults in France and the second leading cause of dementia. However, 80% of strokes could be prevented by addressing modifiable risk factors. Understanding the mechanisms of a stroke, knowing how to recognize warning signs, and identifying your own risk factors are three skills that can literally save lives.\n<\/div>\n<div class=\"stats-grid\">\n<div class=\"stat-card\"><span class=\"stat-number\">150,000<\/span><\/p>\n<div class=\"stat-label\">strokes per year in France \u2014 one every 4 minutes, day and night<\/div>\n<\/div>\n<div class=\"stat-card\"><span class=\"stat-number\">80%<\/span><\/p>\n<div class=\"stat-label\">of strokes could be prevented by controlling modifiable risk factors<\/div>\n<\/div>\n<div class=\"stat-card\"><span class=\"stat-number\">1.9M<\/span><\/p>\n<div class=\"stat-label\">neurons die every minute during a stroke \u2014 every minute counts<\/div>\n<\/div>\n<\/div>\n<h2>1. Definition: what is a stroke?<\/h2>\n<pee>A stroke is a sudden and abrupt interruption of blood flow to a part of the brain. Deprived of oxygen and glucose, brain cells suffer within 4 minutes and begin to die irreparably. Unlike cells in most organs, neurons do not regenerate \u2014 which explains the often permanent nature of the consequences when treatment is delayed.<\/pee>\n<pee>There are two main categories of strokes, with radically different mechanisms and emergency treatments. The <strong>ischemic stroke<\/strong> (80% of cases) is caused by the blockage of a cerebral artery by a clot (thrombus formed on site) or an embolism (clot migrating from the heart or a peripheral artery). The <strong>hemorrhagic stroke<\/strong> (20%) is caused by the rupture of a cerebral blood vessel, leading to bleeding in or around the brain tissue.<\/pee>\n<div class=\"highlight-box\">\n<h4>\u26a1 TIA: the warning that should never be ignored<\/h4>\n<pee>The Transient Ischemic Attack (TIA) produces the same symptoms as a Stroke but disappears spontaneously in less than 24 hours (usually in a few minutes). Contrary to what its name suggests, it is not &#8220;benign&#8221;: 15 to 20% of people who have a TIA will have a full Stroke within the next 3 months, half of them within 48 hours. A TIA is an absolute medical emergency \u2014 call 15 immediately, even if the symptoms have disappeared.<\/pee>\n<\/div>\n<h2>2. Recognizing warning signs: the FAST method<\/h2>\n<div class=\"warning-box\">\n<h4>\ud83d\udea8 FAST \u2014 Recognize a Stroke in 4 seconds<\/h4>\n<pee><strong>F \u2014 Face:<\/strong> Ask the person to smile. Facial asymmetry, a mouth deviated to one side, a drooping eyelid are warning signs.<!\u2013- [et_pb_br_holder] -\u2013><br \/>\n<strong>A \u2014 Arms:<\/strong> Ask them to raise both arms. Inability to raise one arm or an involuntary drop on one side indicates motor weakness.<!\u2013- [et_pb_br_holder] -\u2013><br \/>\n<strong>S \u2014 Speech:<\/strong> Ask them to repeat a simple sentence. Incoherent speech, incomprehensible words, inability to speak \u2014 these are alarm signs.<!\u2013- [et_pb_br_holder] -\u2013><br \/>\n<strong>T \u2014 Time:<\/strong> Call 15 (SAMU) immediately. Do not wait to see if it goes away. Every minute counts.<\/pee>\n<\/div>\n<pee>Other signs may accompany these symptoms: sudden blindness in one eye or double vision, headaches of unusual intensity (&#8220;the worst pain of my life&#8221;), sudden dizziness with loss of balance or coordination, numbness or sudden paralysis on one side of the body. The therapeutic window for thrombolysis (treatment dissolving the clot in ischemic Stroke) is a maximum of 4h30 \u2014 hence the crucial importance of calling 15 without delay.<\/pee>\n<h2>3. Types of Stroke: ischemic and hemorrhagic<\/h2>\n<table class=\"comparison-table\">\n<thead>\n<tr>\n<th>Characteristic<\/th>\n<th>Ischemic Stroke<\/th>\n<th>Hemorrhagic Stroke<\/th>\n<\/tr>\n<\/thead>\n<tbody>\n<tr>\n<td><strong>Frequency<\/strong><\/td>\n<td>80% of strokes<\/td>\n<td>20% of strokes<\/td>\n<\/tr>\n<tr>\n<td><strong>Mechanism<\/strong><\/td>\n<td>Obstruction of an artery by a clot<\/td>\n<td>Rupture of a vessel, cerebral bleeding<\/td>\n<\/tr>\n<tr>\n<td><strong>Onset<\/strong><\/td>\n<td>Often gradual (minutes to hours)<\/td>\n<td>Often sudden (seconds)<\/td>\n<\/tr>\n<tr>\n<td><strong>Headache<\/strong><\/td>\n<td>Rare or moderate<\/td>\n<td>Severe, &#8220;thunderclap headache&#8221;<\/td>\n<\/tr>\n<tr>\n<td><strong>Emergency treatment<\/strong><\/td>\n<td>Thrombolysis and\/or thrombectomy<\/td>\n<td>Surgery or medical treatment depending on location<\/td>\n<\/tr>\n<tr>\n<td><strong>Triggering factor<\/strong><\/td>\n<td>Atrial fibrillation, atherosclerosis<\/td>\n<td>Uncontrolled hypertension, aneurysm<\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n<h2>4. Risk factors<\/h2>\n<h3>Modifiable factors: levers for action<\/h3>\n<div class=\"method-card blue\">\n<div class=\"method-badge badge-blue\">\ud83d\udd34 Absolute priority<\/div>\n<h4>High blood pressure \u2014 1st risk factor for Stroke<\/h4>\n<pee>Hypertension is responsible for 54% of strokes worldwide. A blood pressure \u2265 140\/90 mmHg progressively weakens the walls of cerebral arteries, promotes the formation of atherosclerotic plaques, and multiplies the risk of Stroke by 4 to 6. Blood pressure control (medications + physical activity + salt reduction) is the most effective preventive intervention known.<\/pee>\n<\/div>\n<div class=\"method-card teal\">\n<div class=\"method-badge badge-green\">\ud83d\udead Tobacco<\/div>\n<h4>Smoking \u2014 risk multiplied by 2 to 3<\/h4>\n<pee>Tobacco multiplies the risk of ischemic Stroke by 2 to 3. It acts through several mechanisms: acceleration of atherosclerosis, increased blood viscosity, arterial spasms, and increased blood pressure. The good news: 5 years after quitting smoking, the risk of Stroke returns to the level of non-smokers.<\/pee>\n<\/div>\n<div class=\"method-card rose\">\n<div class=\"method-badge badge-rose\">\ud83d\udc94 Atrial fibrillation<\/div>\n<h4>AF \u2014 source of cardiac emboli<\/h4>\n<pee>Atrial fibrillation (AF) is a heart rhythm disorder that multiplies the risk of Stroke by 5. It generates turbulence in the heart chambers, promoting the formation of clots that can migrate to the brain. Its treatment (anticoagulants, ablation) drastically reduces this risk.<\/pee>\n<\/div>\n<h3>Non-modifiable factors<\/h3>\n<pee><strong>Age<\/strong> is the main non-modifiable factor: the risk of Stroke doubles every 10 years after age 55. <strong>Personal history<\/strong> (a first Stroke or TIA multiplies the risk of recurrence by 10 in the following 90 days) and <strong>family history<\/strong> (a first-degree relative with a Stroke before age 65 doubles the risk) complete this picture.<\/pee>\n<h2>5. DYNSEO resources on Stroke<\/h2>\n<div class=\"program-card\">\n<h4>\ud83e\udde0 DYNSEO Training \u2014 Understanding and supporting Stroke<\/h4>\n<pee>\u2022 <a href=\"https:\/\/www.dynseo.com\/en\/courses\/stroke-understanding-the-disease-and-finding-solutions-for-everyday-life\/\" target=\"_blank\"><strong>Training &#8220;Stroke: understanding the disease&#8221;<\/strong><\/a> \u2014 solutions for daily life<!\u2013- [et_pb_br_holder] -\u2013><br \/>\n\u2022 <a href=\"https:\/\/www.dynseo.com\/en\/courses\/stroke-in-institutions-understanding-the-consequences-and-adapting-professional-practice-en\/\" target=\"_blank\"><strong>Training &#8220;Stroke in institutions&#8221;<\/strong><\/a> \u2014 understanding the consequences and adapting practice<!\u2013- [et_pb_br_holder] -\u2013><br \/>\n\u2022 <a href=\"https:\/\/www.dynseo.com\/en\/courses\/cognitive-disorders-after-a-stroke-memory-attention-and-daily-life-en\/\" target=\"_blank\"><strong>Training &#8220;Cognitive disorders after a Stroke&#8221;<\/strong><\/a> \u2014 memory, attention, and daily life<!\u2013- [et_pb_br_holder] -\u2013><br \/>\n\u2022 <a href=\"https:\/\/www.dynseo.com\/en\/our-tools\/\" target=\"_blank\"><strong>62 cognitive stimulation tools<\/strong><\/a> \u2014 cognitive rehabilitation post-Stroke<\/pee>\n<a href=\"https:\/\/www.dynseo.com\/en\/courses\/stroke-understanding-the-disease-and-finding-solutions-for-everyday-life\/\" target=\"_blank\" class=\"cta-button\">Discover Stroke training \u2192<\/a>\n<\/div>\n<h2>FAQ<\/h2>\n<div class=\"faq-item\">\n<h4>What is a Stroke?<\/h4>\n<pee>A Stroke is a sudden interruption of blood flow in a part of the brain. Neurons deprived of oxygen die at a rate of 1.9 million per minute. There are two types: ischemic (80%, obstruction) and hemorrhagic (20%, vascular rupture).<\/pee><\/div>\n<div class=\"faq-item\">\n<h4>What are the warning signs (FAST method)?<\/h4>\n<pee>Face (facial asymmetry), Arms (inability to raise an arm), Speech (speech disorders), Time (call 15 immediately). These signs require emergency intervention even if they disappear spontaneously.<\/pee><\/div>\n<div class=\"faq-item\">\n<h4>What are the modifiable risk factors?<\/h4>\n<pee>High blood pressure (1st factor), smoking, diabetes, atrial fibrillation, obesity, physical inactivity, high cholesterol, excessive alcohol consumption. Addressing these factors can reduce the risk of Stroke by 80%.<\/pee><\/div>\n<div class=\"faq-item\">\n<h4>Is Stroke common in France?<\/h4>\n<pee>150,000 strokes per year in France, or one every 4 minutes. It is the leading cause of acquired disability in adults, the second leading cause of dementia, and the third leading cause of mortality.<\/pee><\/div>\n<div class=\"faq-item\">\n<h4>Can a Stroke be prevented?<\/h4>\n<pee>Yes, 80% of strokes would be avoidable. Blood pressure control (\u2264140\/90), quitting smoking, 30 minutes of physical activity per day, and a Mediterranean diet are the most effective levers.<\/pee><\/div>\n<div class=\"conclusion\">\n<h2>Conclusion: act before the emergency<\/h2>\n<pee>A Stroke is still too often perceived as a fatality. The reality is more encouraging: a large majority of strokes are preceded by ignored warning signs, and most risk factors are controllable. Knowing the FAST method, regularly monitoring blood pressure, and consulting a doctor in case of TIA are three reflexes that can radically change the prognosis. DYNSEO training supports patients, caregivers, and professionals in better understanding this disease and its consequences.<\/pee>\n<\/div>\n<\/div>\n<footer class=\"article-footer\">\n<h3>DYNSEO Training \u2014 Stroke<\/h3>\n<div class=\"footer-links\">\n<a href=\"https:\/\/www.dynseo.com\/en\/courses\/stroke-understanding-the-disease-and-finding-solutions-for-everyday-life\/\" target=\"_blank\">Stroke Training<\/a><br \/>\n<a href=\"https:\/\/www.dynseo.com\/en\/courses\/cognitive-disorders-after-a-stroke-memory-attention-and-daily-life-en\/\" target=\"_blank\">Cognitive Disorders Stroke<\/a><br \/>\n<a href=\"https:\/\/www.dynseo.com\/en\/memory-test\/\" target=\"_blank\">Memory Test<\/a><br \/>\n<a href=\"https:\/\/www.dynseo.com\/en\/our-tools\/\" target=\"_blank\">62 Cognitive Tools<\/a>\n<\/div>\n<\/footer>\n<\/article>\n<\/div>\n<p>[\/et_pb_code][\/et_pb_column][\/et_pb_row][\/et_pb_section]<\/p>\n<p>[et_pb_code]<script type=\"application\/ld+json\">{\"@context\":\"https:\/\/schema.org\",\"@type\":\"FAQPage\",\"mainEntity\":[{\"@type\":\"Question\",\"name\":\"Qu'est-ce qu'un AVC et comment se d\u00e9finit-il ?\",\"acceptedAnswer\":{\"@type\":\"Answer\",\"text\":\"Un AVC (Accident Vasculaire C\u00e9r\u00e9bral) est une interruption brutale et soudaine de la circulation sanguine dans une partie du cerveau. Priv\u00e9es d'oxyg\u00e8ne et de glucose, les cellules c\u00e9r\u00e9brales souffrent d\u00e8s 4 minutes et commencent \u00e0 mourir irr\u00e9m\u00e9diablement.\"}},{\"@type\":\"Question\",\"name\":\"Combien d'AVC surviennent en France chaque ann\u00e9e ?\",\"acceptedAnswer\":{\"@type\":\"Answer\",\"text\":\"150 000 AVC surviennent par an en France, soit un toutes les 4 minutes, jour et nuit.\"}},{\"@type\":\"Question\",\"name\":\"Combien de neurones meurent lors d'un AVC ?\",\"acceptedAnswer\":{\"@type\":\"Answer\",\"text\":\"Un AVC tue 1,9 million de neurones par minute, ce qui explique pourquoi chaque minute compte lors d'un AVC.\"}},{\"@type\":\"Question\",\"name\":\"Quelle est la proportion d'AVC \u00e9vitables ?\",\"acceptedAnswer\":{\"@type\":\"Answer\",\"text\":\"80 % des AVC seraient \u00e9vitables en agissant sur les facteurs de risque modifiables et en les contr\u00f4lant efficacement.\"}},{\"@type\":\"Question\",\"name\":\"Pourquoi les s\u00e9quelles d'un AVC sont-elles souvent d\u00e9finitives ?\",\"acceptedAnswer\":{\"@type\":\"Answer\",\"text\":\"Contrairement aux cellules de la plupart des organes, les neurones ne se r\u00e9g\u00e9n\u00e8rent pas, ce qui explique le caract\u00e8re souvent d\u00e9finitif des s\u00e9quelles quand la prise en charge tarde.\"}},{\"@type\":\"Question\",\"name\":\"Quel rang occupe l'AVC parmi les causes de handicap et de d\u00e9mence en France ?\",\"acceptedAnswer\":{\"@type\":\"Answer\",\"text\":\"L'AVC est la premi\u00e8re cause de handicap acquis de l'adulte en France et la deuxi\u00e8me cause de d\u00e9mence.\"}}]}<\/script>[\/et_pb_code]<\/p>\n","protected":false},"excerpt":{"rendered":"","protected":false},"author":4,"featured_media":412655,"comment_status":"closed","ping_status":"closed","sticky":false,"template":"","format":"standard","meta":{"_et_pb_use_builder":"on","_et_pb_old_content":"[et_pb_section fb_built=\"1\" admin_label=\"Article HTML\" _builder_version=\"4.16\" custom_padding=\"0px||0px||false|false\" global_colors_info=\"{}\"][et_pb_row admin_label=\"Contenu\" _builder_version=\"4.16\" width=\"100%\" max_width=\"100%\" custom_padding=\"0px||0px||false|false\" global_colors_info=\"{}\"][et_pb_column type=\"4_4\" _builder_version=\"4.16\" global_colors_info=\"{}\"][et_pb_code admin_label=\"HTML import\u00e9\" _builder_version=\"4.16\" global_colors_info=\"{}\"]<style type=\"text\/css\">\n@import url('https:\/\/fonts.googleapis.com\/css2?family=Montserrat:wght@600;700;800&family=Poppins:wght@400;500;600&display=swap');\n        * { margin: 0; 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}\n.dbi-art-9d3028 .container { padding: 15px; }\n.dbi-art-9d3028 h2 { font-size: 1.5rem; }\n.dbi-art-9d3028 .comparison-table { font-size: 0.9rem; }\n}\n\n<\/style>\n<div class=\"dbi-art-9d3028\">\n<article>\n<header class=\"article-header\">\n<div class=\"article-category\">\ud83e\udde0 Neurodegenerative diseases \u2014 Stroke Series<\/div>\n<h1>Stroke: definition, causes and risk factors<\/h1>\n<p class=\"subtitle\">150,000 strokes per year in France \u2014 one every 4 minutes. Understanding what triggers this medical emergency and which risk factors can be controlled is the first step to protecting your brain.<\/p>\n<\/header>\n\n<div class=\"container\">\n\n<div class=\"intro-paragraph\">\nA stroke (Cerebral Vascular Accident) kills 1.9 million neurons per minute. It is the leading cause of acquired disability in adults in France and the second leading cause of dementia. However, 80% of strokes could be prevented by addressing modifiable risk factors. Understanding the mechanisms of a stroke, knowing how to recognize warning signs, and identifying your own risk factors are three skills that can literally save lives.\n<\/div>\n\n<div class=\"stats-grid\">\n<div class=\"stat-card\"><span class=\"stat-number\">150,000<\/span><div class=\"stat-label\">strokes per year in France \u2014 one every 4 minutes, day and night<\/div><\/div>\n<div class=\"stat-card\"><span class=\"stat-number\">80%<\/span><div class=\"stat-label\">of strokes could be prevented by controlling modifiable risk factors<\/div><\/div>\n<div class=\"stat-card\"><span class=\"stat-number\">1.9M<\/span><div class=\"stat-label\">neurons die every minute during a stroke \u2014 every minute counts<\/div><\/div>\n<\/div>\n\n<h2>1. Definition: what is a stroke?<\/h2>\n<p>A stroke is a sudden and abrupt interruption of blood flow to a part of the brain. Deprived of oxygen and glucose, brain cells suffer within 4 minutes and begin to die irreparably. Unlike cells in most organs, neurons do not regenerate \u2014 which explains the often permanent nature of the consequences when treatment is delayed.<\/p>\n\n<p>There are two main categories of strokes, with radically different mechanisms and emergency treatments. The <strong>ischemic stroke<\/strong> (80% of cases) is caused by the blockage of a cerebral artery by a clot (thrombus formed on site) or an embolism (clot migrating from the heart or a peripheral artery). The <strong>hemorrhagic stroke<\/strong> (20%) is caused by the rupture of a cerebral blood vessel, leading to bleeding in or around the brain tissue.<\/p>\n<div class=\"highlight-box\">\n<h4>\u26a1 TIA: the warning that should never be ignored<\/h4>\n<p>The Transient Ischemic Attack (TIA) produces the same symptoms as a Stroke but disappears spontaneously in less than 24 hours (usually in a few minutes). Contrary to what its name suggests, it is not \"benign\": 15 to 20% of people who have a TIA will have a full Stroke within the next 3 months, half of them within 48 hours. A TIA is an absolute medical emergency \u2014 call 15 immediately, even if the symptoms have disappeared.<\/p>\n<\/div>\n\n<h2>2. Recognizing warning signs: the FAST method<\/h2>\n\n<div class=\"warning-box\">\n<h4>\ud83d\udea8 FAST \u2014 Recognize a Stroke in 4 seconds<\/h4>\n<p><strong>F \u2014 Face:<\/strong> Ask the person to smile. Facial asymmetry, a mouth deviated to one side, a drooping eyelid are warning signs.<br>\n<strong>A \u2014 Arms:<\/strong> Ask them to raise both arms. Inability to raise one arm or an involuntary drop on one side indicates motor weakness.<br>\n<strong>S \u2014 Speech:<\/strong> Ask them to repeat a simple sentence. Incoherent speech, incomprehensible words, inability to speak \u2014 these are alarm signs.<br>\n<strong>T \u2014 Time:<\/strong> Call 15 (SAMU) immediately. Do not wait to see if it goes away. Every minute counts.<\/p>\n<\/div>\n\n<p>Other signs may accompany these symptoms: sudden blindness in one eye or double vision, headaches of unusual intensity (\"the worst pain of my life\"), sudden dizziness with loss of balance or coordination, numbness or sudden paralysis on one side of the body. The therapeutic window for thrombolysis (treatment dissolving the clot in ischemic Stroke) is a maximum of 4h30 \u2014 hence the crucial importance of calling 15 without delay.<\/p>\n\n<h2>3. Types of Stroke: ischemic and hemorrhagic<\/h2>\n\n<table class=\"comparison-table\">\n<thead><tr><th>Characteristic<\/th><th>Ischemic Stroke<\/th><th>Hemorrhagic Stroke<\/th><\/tr><\/thead>\n<tbody>\n<tr><td><strong>Frequency<\/strong><\/td><td>80% of strokes<\/td><td>20% of strokes<\/td><\/tr>\n<tr><td><strong>Mechanism<\/strong><\/td><td>Obstruction of an artery by a clot<\/td><td>Rupture of a vessel, cerebral bleeding<\/td><\/tr>\n<tr><td><strong>Onset<\/strong><\/td><td>Often gradual (minutes to hours)<\/td><td>Often sudden (seconds)<\/td><\/tr>\n<tr><td><strong>Headache<\/strong><\/td><td>Rare or moderate<\/td><td>Severe, \"thunderclap headache\"<\/td><\/tr>\n<tr><td><strong>Emergency treatment<\/strong><\/td><td>Thrombolysis and\/or thrombectomy<\/td><td>Surgery or medical treatment depending on location<\/td><\/tr>\n<tr><td><strong>Triggering factor<\/strong><\/td><td>Atrial fibrillation, atherosclerosis<\/td><td>Uncontrolled hypertension, aneurysm<\/td><\/tr>\n<\/tbody>\n<\/table>\n\n<h2>4. Risk factors<\/h2>\n\n<h3>Modifiable factors: levers for action<\/h3>\n\n<div class=\"method-card blue\">\n<div class=\"method-badge badge-blue\">\ud83d\udd34 Absolute priority<\/div>\n<h4>High blood pressure \u2014 1st risk factor for Stroke<\/h4>\n<p>Hypertension is responsible for 54% of strokes worldwide. A blood pressure \u2265 140\/90 mmHg progressively weakens the walls of cerebral arteries, promotes the formation of atherosclerotic plaques, and multiplies the risk of Stroke by 4 to 6. Blood pressure control (medications + physical activity + salt reduction) is the most effective preventive intervention known.<\/p>\n<\/div>\n\n<div class=\"method-card teal\">\n<div class=\"method-badge badge-green\">\ud83d\udead Tobacco<\/div>\n<h4>Smoking \u2014 risk multiplied by 2 to 3<\/h4>\n<p>Tobacco multiplies the risk of ischemic Stroke by 2 to 3. It acts through several mechanisms: acceleration of atherosclerosis, increased blood viscosity, arterial spasms, and increased blood pressure. The good news: 5 years after quitting smoking, the risk of Stroke returns to the level of non-smokers.<\/p>\n<\/div>\n\n<div class=\"method-card rose\">\n<div class=\"method-badge badge-rose\">\ud83d\udc94 Atrial fibrillation<\/div>\n<h4>AF \u2014 source of cardiac emboli<\/h4>\n<p>Atrial fibrillation (AF) is a heart rhythm disorder that multiplies the risk of Stroke by 5. It generates turbulence in the heart chambers, promoting the formation of clots that can migrate to the brain. Its treatment (anticoagulants, ablation) drastically reduces this risk.<\/p>\n<\/div>\n\n<h3>Non-modifiable factors<\/h3>\n<p><strong>Age<\/strong> is the main non-modifiable factor: the risk of Stroke doubles every 10 years after age 55. <strong>Personal history<\/strong> (a first Stroke or TIA multiplies the risk of recurrence by 10 in the following 90 days) and <strong>family history<\/strong> (a first-degree relative with a Stroke before age 65 doubles the risk) complete this picture.<\/p>\n\n<h2>5. DYNSEO resources on Stroke<\/h2>\n\n<div class=\"program-card\">\n<h4>\ud83e\udde0 DYNSEO Training \u2014 Understanding and supporting Stroke<\/h4>\n<p>\u2022 <a href=\"https:\/\/www.dynseo.com\/courses\/avc-comprendre-la-maladie-et-trouver-des-solutions-pour-le-quotidien\/\" target=\"_blank\"><strong>Training \"Stroke: understanding the disease\"<\/strong><\/a> \u2014 solutions for daily life<br>\n\u2022 <a href=\"https:\/\/www.dynseo.com\/courses\/avc-en-etablissement-comprendre-les-sequelles-et-adapter-sa-pratique-professionnelle\/\" target=\"_blank\"><strong>Training \"Stroke in institutions\"<\/strong><\/a> \u2014 understanding the consequences and adapting practice<br>\n\u2022 <a href=\"https:\/\/www.dynseo.com\/courses\/troubles-cognitifs-apres-un-avc-memoire-attention-et-vie-quotidienne\/\" target=\"_blank\"><strong>Training \"Cognitive disorders after a Stroke\"<\/strong><\/a> \u2014 memory, attention, and daily life<br>\n\u2022 <a href=\"https:\/\/www.dynseo.com\/nos-outils\/\" target=\"_blank\"><strong>62 cognitive stimulation tools<\/strong><\/a> \u2014 cognitive rehabilitation post-Stroke<\/p>\n<a href=\"https:\/\/www.dynseo.com\/courses\/avc-comprendre-la-maladie-et-trouver-des-solutions-pour-le-quotidien\/\" target=\"_blank\" class=\"cta-button\">Discover Stroke training \u2192<\/a>\n<\/div>\n\n<h2>FAQ<\/h2>\n<div class=\"faq-item\"><h4>What is a Stroke?<\/h4><p>A Stroke is a sudden interruption of blood flow in a part of the brain. Neurons deprived of oxygen die at a rate of 1.9 million per minute. There are two types: ischemic (80%, obstruction) and hemorrhagic (20%, vascular rupture).<\/p><\/div>\n<div class=\"faq-item\"><h4>What are the warning signs (FAST method)?<\/h4><p>Face (facial asymmetry), Arms (inability to raise an arm), Speech (speech disorders), Time (call 15 immediately). These signs require emergency intervention even if they disappear spontaneously.<\/p><\/div>\n<div class=\"faq-item\"><h4>What are the modifiable risk factors?<\/h4><p>High blood pressure (1st factor), smoking, diabetes, atrial fibrillation, obesity, physical inactivity, high cholesterol, excessive alcohol consumption. Addressing these factors can reduce the risk of Stroke by 80%.<\/p><\/div>\n<div class=\"faq-item\"><h4>Is Stroke common in France?<\/h4><p>150,000 strokes per year in France, or one every 4 minutes. It is the leading cause of acquired disability in adults, the second leading cause of dementia, and the third leading cause of mortality.<\/p><\/div>\n<div class=\"faq-item\"><h4>Can a Stroke be prevented?<\/h4><p>Yes, 80% of strokes would be avoidable. Blood pressure control (\u2264140\/90), quitting smoking, 30 minutes of physical activity per day, and a Mediterranean diet are the most effective levers.<\/p><\/div>\n\n<div class=\"conclusion\">\n<h2>Conclusion: act before the emergency<\/h2>\n<p>A Stroke is still too often perceived as a fatality. The reality is more encouraging: a large majority of strokes are preceded by ignored warning signs, and most risk factors are controllable. Knowing the FAST method, regularly monitoring blood pressure, and consulting a doctor in case of TIA are three reflexes that can radically change the prognosis. DYNSEO training supports patients, caregivers, and professionals in better understanding this disease and its consequences.<\/p>\n<\/div>\n\n<\/div>\n<footer class=\"article-footer\">\n<h3>DYNSEO Training \u2014 Stroke<\/h3>\n<div class=\"footer-links\">\n<a href=\"https:\/\/www.dynseo.com\/courses\/avc-comprendre-la-maladie-et-trouver-des-solutions-pour-le-quotidien\/\" target=\"_blank\">Stroke Training<\/a>\n<a href=\"https:\/\/www.dynseo.com\/courses\/troubles-cognitifs-apres-un-avc-memoire-attention-et-vie-quotidienne\/\" target=\"_blank\">Cognitive Disorders Stroke<\/a>\n<a href=\"https:\/\/www.dynseo.com\/test-memoire\/\" target=\"_blank\">Memory Test<\/a>\n<a href=\"https:\/\/www.dynseo.com\/nos-outils\/\" target=\"_blank\">62 Cognitive Tools<\/a>\n<\/div>\n<\/footer>\n<\/article>\n<\/div>[\/et_pb_code][\/et_pb_column][\/et_pb_row][\/et_pb_section]\n\n[et_pb_code]<script type=\"application\/ld+json\">{\"@context\":\"https:\/\/schema.org\",\"@type\":\"FAQPage\",\"mainEntity\":[{\"@type\":\"Question\",\"name\":\"Qu'est-ce qu'un AVC et comment se d\u00e9finit-il ?\",\"acceptedAnswer\":{\"@type\":\"Answer\",\"text\":\"Un AVC (Accident Vasculaire C\u00e9r\u00e9bral) est une interruption brutale et soudaine de la circulation sanguine dans une partie du cerveau. Priv\u00e9es d'oxyg\u00e8ne et de glucose, les cellules c\u00e9r\u00e9brales souffrent d\u00e8s 4 minutes et commencent \u00e0 mourir irr\u00e9m\u00e9diablement.\"}},{\"@type\":\"Question\",\"name\":\"Combien d'AVC surviennent en France chaque ann\u00e9e ?\",\"acceptedAnswer\":{\"@type\":\"Answer\",\"text\":\"150 000 AVC surviennent par an en France, soit un toutes les 4 minutes, jour et nuit.\"}},{\"@type\":\"Question\",\"name\":\"Combien de neurones meurent lors d'un AVC ?\",\"acceptedAnswer\":{\"@type\":\"Answer\",\"text\":\"Un AVC tue 1,9 million de neurones par minute, ce qui explique pourquoi chaque minute compte lors d'un AVC.\"}},{\"@type\":\"Question\",\"name\":\"Quelle est la proportion d'AVC \u00e9vitables ?\",\"acceptedAnswer\":{\"@type\":\"Answer\",\"text\":\"80 % des AVC seraient \u00e9vitables en agissant sur les facteurs de risque modifiables et en les contr\u00f4lant efficacement.\"}},{\"@type\":\"Question\",\"name\":\"Pourquoi les s\u00e9quelles d'un AVC sont-elles souvent d\u00e9finitives ?\",\"acceptedAnswer\":{\"@type\":\"Answer\",\"text\":\"Contrairement aux cellules de la plupart des organes, les neurones ne se r\u00e9g\u00e9n\u00e8rent pas, ce qui explique le caract\u00e8re souvent d\u00e9finitif des s\u00e9quelles quand la prise en charge tarde.\"}},{\"@type\":\"Question\",\"name\":\"Quel rang occupe l'AVC parmi les causes de handicap et de d\u00e9mence en France ?\",\"acceptedAnswer\":{\"@type\":\"Answer\",\"text\":\"L'AVC est la premi\u00e8re cause de handicap acquis de l'adulte en France et la deuxi\u00e8me cause de d\u00e9mence.\"}}]}<\/script>[\/et_pb_code]","_et_gb_content_width":"","footnotes":""},"categories":[2915],"tags":[],"class_list":["post-549410","post","type-post","status-publish","format-standard","has-post-thumbnail","hentry","category-les-conseils-des-coachs"],"yoast_head":"<!-- This site is optimized with the Yoast SEO plugin v27.4 - https:\/\/yoast.com\/product\/yoast-seo-wordpress\/ -->\n<title>Stroke: Definition, Causes and Risk Factors | DYNSEO - DYNSEO - Educational apps &amp; 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