Protect yourself from cancer - know your breasts. It’s easier to recognize changes if you regularly feel your body, like in the shower and when you’re dressingLose unhealthy extra weight now. It’ll be much easier to do it in your twenties and thirties than later, when metabolism slows down.Get happy. In one study, positive people injected with the cold virus were less likely to get sick than their less happy peers.Help someone. You can exercise like a maniac and still not feel truly healthy and alive. But stepping beyond yourself makes you realize that you’re part of something bigger and more profound.Go ahead, buy new shoes. Fortunately, platform heels made a huge comeback. You get the height of a stiletto without the arch-busting 45-degree angle that puts so much pressure on the balls of your feet. And the wider heels provide much better support and stability than regular pumps.Toss your diet books. Just eat lots of multicoloured foods that were recently alive. You know, like vegetables and fruits.Never crash diet. Research shows it can make you depressed. Nourishing your body also nourishes your mind.Remember that every meal is not your last. There will be another turkey dinner, another plate of spaghetti, another brownie. If you keep in mind that this is not your last chance to eat a food you love, it will be easier for you to put down your fork when you’ve had enough.Keep emergency contraception handy. And remember, any guy 18 or older can buy it over the counter too, so send him to get it!Read something exciting. Start a puzzle habit; exercise—‘use it or lose it’ applies to both physical and mental health.