False about risk factor for stroke is
**Core Concept**
Stroke risk factors are multifactorial and include modifiable and non-modifiable conditions. The pathophysiology of stroke involves a complex interplay of vascular, neurological, and systemic factors. Understanding the risk factors is crucial for primary and secondary stroke prevention.
**Why the Correct Answer is Right**
The correct answer is related to the identification of a false risk factor for stroke. Among the common risk factors for stroke are hypertension, diabetes, hyperlipidemia, smoking, and atrial fibrillation. These conditions contribute to the development of atherosclerosis, endothelial dysfunction, and thrombosis, ultimately leading to ischemic or hemorrhagic stroke. The correct answer will be a condition that does not significantly increase stroke risk.
**Why Each Wrong Option is Incorrect**
**Option A:** This option is incorrect because it is a well-established risk factor for stroke. Hypertension is a major contributor to atherosclerosis, cerebral small vessel disease, and cardiac dysfunction, all of which increase stroke risk.
**Option B:** This option is incorrect because it is also a recognized risk factor for stroke. Diabetes mellitus is associated with endothelial dysfunction, inflammation, and atherosclerosis, all of which increase stroke risk.
**Option C:** This option is incorrect because it is a false risk factor for stroke. While obesity is a risk factor for many cardiovascular diseases, it is not a direct risk factor for stroke. However, obesity can contribute to hypertension, diabetes, and hyperlipidemia, which are all risk factors for stroke.
**Option D:** This option is incorrect because it is a false risk factor for stroke. While stress can exacerbate underlying risk factors for stroke, it is not a direct risk factor for stroke. However, chronic stress can contribute to hypertension, diabetes, and hyperlipidemia, which are all risk factors for stroke.
**Clinical Pearl / High-Yield Fact**
A mnemonic to remember common stroke risk factors is "DIABETES" - Diabetes, Insulin resistance, Atrial fibrillation, Blood pressure, Endothelial dysfunction, Thrombosis, and Smoking.
**Correct Answer:** D. Stress is not a direct risk factor for stroke.