Connect with nature.

"Exercise has been shown to relieve stress, and being out in nature while you do it could help as well. A small study in the Proceedings of the National Academy of Sciences found that urban residents who walked for 90 minutes in nature had lower self-reported scores on rumination—overthinking or hyper focusing on a negative situation—than those who walked in a city."

Get more and better sleep.

"Chronic sleep deprivation is also associated with an increased risk of a variety of illnesses and acute infections, such as colds, Cohen says. The sweet spot for sleep seems to be between 7 and 8 hours per night. (Too little or too much can ­increase your risk of certain illnesses.)If you’re having trouble nodding off or staying asleep, keep potential distractions out of the bedroom (pets, snoring, glowing screens, bright lights, an uncomfortable temperature) and make time before bed to practice deep relaxation or mindfulness to help calm your brain."

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