When you're a young guy who's in shape, middle age can seem like a long way off. Because you look good and feel good now, it’s tempting to say “screw it” and slack on your health — chowing down on the foods you’re craving, coasting through work, and spending way too much time on social media. But once you hit 30, the bad habits you didn’t kick during your 20s can take a toll on every part of your life. Make a few small changes now, and you’ll keep your muscles toned, your heart pumping, your sex life hot, and your career on point for years to come.
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