Before trying to change your sleep habits, keep in mind that a new study did not conclude that more sleep actually causes strokes, reports the Harvard Health Blog.

For example, people who sleep more at night or nap more during the day may have other risk factors for stroke, such as:

  • A higher incidence of depression. Excessive sleeping or poor sleep quality may be symptoms of depression, and prior studies have noted higher stroke rates among depressed individuals.
  • A more sedentary lifestyle. Those who are not active may sleep or nap more and also have more cardiovascular risk factors (such as smoking or hypertension) than those who exercise regularly. Past research has noted less favorable cholesterol levels and larger waist circumference among long sleepers and nappers.

via Are you getting enough sleep… or too much? Sleep and stroke risk – Harvard Health Blog.