People who sleep between 7-8 hours are 75% less likely to suffer a stroke, study finds

French researchers, who monitored the shut-eye habits of more than 7,000 over-50s, found sub-optimal sleep is linked to a higher risk of heart disease and stroke.French researchers, who monitored the shut-eye habits of more than 7,000 over-50s, found sub-optimal sleep is linked to a higher risk of heart disease and stroke.Read MoreHealth News | Mail Online