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What is the best exercise to improve sleep?

Comparing data from 30 trials, scientists ranked workouts based on how well they benefit sleep

An image of women doing yoga

Yoga may be the best exercise to help people with sleeping disorders such as insomnia, preliminary research suggests.

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By Kamal Nahas

High-intensity yoga for less than 30 minutes, twice a week, may be the best workout routine for catching high-quality shut-eye, a new study shows.