Which condition has been linked to an increased risk of stroke?

Hypertension, or high blood pressure, is a well-established risk factor for stroke. It contributes to the damage of blood vessels over time, leading to atherosclerosis, which is the buildup of fatty deposits in the arteries. This narrowing and hardening of the arteries can significantly reduce blood flow to the brain and increase the chances of clot formation. When a clot blocks blood flow, or when a blood vessel in the brain bursts, a stroke occurs. Therefore, managing hypertension through lifestyle changes and medication is crucial in reducing the risk of stroke.

In contrast, high physical activity is generally associated with a lower risk of stroke as it helps maintain cardiovascular health and manage weight. Low cholesterol levels do not inherently increase stroke risk and are often linked to a lower risk of cardiovascular events. Regular sleep patterns are also beneficial for overall health, including brain health, and are not associated with an increased stroke risk.