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.
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The 2014 Adventure Issue
From Iceland's Highway 1 to Utah's Canyonlands, an epic itinerary for modern explorers.
Plus: Building a Bigger Action Hero
ON NEWSSTANDS NOW
The Interpreters We Left Behind
The Rise of Cyclocross
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