Q & A: Q&A: Am I Sleeping Too Long?

Monday, December 12, 2011 - 16:30 in Health & Medicine

Sleep duration varies widely and may be genetically determined, and 1 to 2 percent of people need at least 10 hours a day, said Dr. Ana C. Krieger of Weill Cornell Medical College.

Read the whole article on NY Times Health

More from NY Times Health

Latest Science Newsletter

Get the latest and most popular science news articles of the week in your Inbox! It's free!

Check out our next project, Biology.Net