This is an archived article and the information in the article may be outdated. Please look at the time stamp on the story to see when it was last updated.

ST. LOUIS, Mo. – A new study says there’s also a sweet spot in the amount of sleep people need. Dr. Joseph Ojile from the Clayton Sleep Institute says that the study appearing in the Journal of The American Medical Association, Neurology, suggests seven to eight hours. There are adverse side effects of getting too much or too little sleep, like Alzheimer’s.