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Stay Speedy

It’s normal as an aging runner to shift away from fast running to something more like a senior shuffle. Avoid that. Regular small doses of fast running will decrease, not increase, your risk of injury. They’ll help you maintain muscle mass and range of motion through the full running stride, and will keep your central nervous system capable of operating at a higher level. Frequency is more important than volume here—6 to 10 20-second bursts at the pace you could hold for 3 minutes, twice a week after an easy run, will do wonders.

: Alison Wade

Plus, isn’t it fun to feel like a kid, sprinting down the street?