IF OUR BODIES COULD TALK
A Guide to Operating and Maintaining a Human Body
By James Hamblin
James Hamblin, a doctor-turned-journalist and creator of a series of videos at TheAtlantic.com, brings his offbeat wit to such timeless questions as: How much sleep do you really need? Do we really not yet know if cellphones cause cancer? Is it possible to boost the immune system? Will caffeine really...