Which factor is NOT considered a risk factor for stroke?

Regular exercise is considered a protective factor against stroke rather than a risk factor. Engaging in regular physical activity helps maintain a healthy weight, lowers blood pressure, improves cholesterol levels, and enhances overall cardiovascular health, all of which contribute to a reduced risk of stroke. On the other hand, obesity, high blood cholesterol levels, and a family history of stroke are all recognized risk factors. These conditions can increase the likelihood of developing cardiovascular issues, including stroke. Therefore, the presence of regular exercise is associated with health benefits that decrease stroke risk, making it the correct choice in this context.