For years, American women have been taking calcium  supplements for stronger bones. Yet they continue to get osteoporosis in record numbers. Why? Because taking supplements is not enough. You also need to engage in weight-bearing exercise.

But here’s the good news: You don’t have to lift heavy weights or do torturous aerobic workouts. Researchers have studied the effect of different activities, and found that the best bone -building activity is gardening! In fact, gardening was more effective than almost all the other activities studied.

Bonus: Because gardening is performed outdoors, your body is also exposed to sunlight, which provides bone-building Vitamin D. Just make sure you apply sunscreen if you’re going to spend more than 15 minutes in the sun.