And it’s not just running — you can get these feelings of bliss and well-being from other kinds of physical activity too. Research psychologist Kelly McGonigal explains how we can get it and why it exists.

To jump-start a workout habit, start out with small amounts, suggests wellness specialist Lauren Parsons.

5 WAYS TO STAY ACTIVE DURING YOUR WORKDAY WHEN IT’S TOO DARK AND COLD FOR WALKING MEETINGS

Walking meetings are a great way to get some exercise during your workday. But when it’s chilly and dark, what else can you try? 5 winter-proof options.

Arianna Huffington provides 16 articles and scientific papers on how sleep can make us more productive.