How America Got Sold on Low-Fat Food
In the 1990s, a "healthy choice" meant eating SnackWell's cookies and sugary reduced-calorie yogurt. Why did America love the low-fat food trend?
Henrietta Lacks, Immortalized
Henrietta Lacks's "immortal" cell line, called "HeLa," is used in everything from cancer treatments to vaccines. A new portrait memorializes her.
Charles Knowlton, the Father of American Birth Control
Decades after Charles Knowlton died, his book would be credited with the reversal of population growth in England and the popularization of contraception in the United States.