Long sleep duration raises heart and brain disease risk by 65%, expert warns

Khaled Al-Nemer, professor of cardiology and arterial catheterization at the College of Medicine, has warned that both short and long sleep durations can increase the risk of heart disease and strokes.

Writing on his X account, Dr. Al-Nemer stated that "sleeping less than six hours or more than nine hours raises the risk of heart and brain diseases."

He added that "long sleep is more dangerous than short sleep in terms of health, as it increases the risk of stroke by 65%—a higher impact than short sleep."