See the rest of Slate's Fitness Issue.
Also in Slate's Fitness issue, Emily Yoffe gets shredded by Jillian Michaels and coddled by Jack LaLanne and our foreign correspondents reveal the latest global workout trends.
TODAY IN SLATE
Black people’s disdain for “proper English” and academic achievement is a myth.
Hong Kong’s Protesters Are Ridiculously Polite. That’s What Scares Beijing So Much.
The One Fact About Ebola That Should Calm You: It Spreads Slowly
Natasha Lyonne Is Coming to the Live Culture Gabfest. Are You?
A Jaw-Dropping Political Ad Aimed at Young Women, Apparently
How White Boy Rick, a legendary Detroit cocaine dealer, helped the FBI uncover brazen police corruption.
How Even an Old Hipster Can Age Gracefully
On their new albums, Leonard Cohen, Robert Plant, and Loudon Wainwright III show three ways.