Aerobic fitness is probably the best, but some studies have shown benefits from resistance training. Stretching – used as a control at times – has not shown any benefit. In terms of duration and effort, the best evidence seems to be for what's called a dose-response curve: That is, any exercise is beneficial. If you are physically active your whole life, it is predictive of better cognitive abilities later in life.
Mad Men's Charming Rogue
The man who played Roger Sterling, is moving on – surfing in Montauk, hanging with his son, and directing a feature film.
Plus: Greenpeace's High-Seas Avenger
ON NEWSSTANDS NOW
What's on John Slattery's Mind
Willem Dafoe's Life Advice
Sign up to receive the Men’s Journal newsletter and special offers from MJ and its marketing partners.