TURN UP THE HEAT

Spending as much time as possible outdoors can make a lasting impact on your overall fitness, as well as on your short-term body goals. Researchers at the Massachusetts General Hospital found that exposing mice to sunlight for six weeks boosted their endorphins by 50%, making them happier and more resilient to discomfort. Shift the dumbbells into the garden and you’ll be pushing out extra sets in no time.