(Lauren Petracca/For The Washington Post)
A surprise discovery unearthed a large cache of World War II documents that had been lost to history.
By Meryl Kornfield
(Timo Lenzen/For The Washington Post)
New studies raise questions about the use of Vitamin D, omega-3 fish oil and glucosamine supplements in some people.
By Ariana Eunjung Cha
Thought-provoking opinions you may have missed amid the news of the week.