When things get crazy at work (or in life), we usually veg out on the couch. The last thing we want to do is drag ourselves to the gym. But according to a new study, opting to watch Netflix instead of exercising isn't doing your body any favors.

Feeling overwhelmed doesn't just affect your mental state—it stresses out your body too, increasing your blood pressure and sometimes even your cholesterol. Working out actually helps boost your mood and lessens these cardiovascular risks. So even though most of us work out less when our brains are fried, those are actually the times we most need the gym.

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