In 2022, a team reviewed six studies with 295 adults to see how exercise helps insomnia. They found that regular workouts, like walking or yoga, improved sleep quality and cut insomnia severity by 20-30%, making it easier to fall and stay asleep.

In 2023, Hao Li and a team from China reviewed 22 randomized trials with 1,537 people battling substance use disorder. They explored how light, moderate, and high-intensity workouts like walking, jogging, or weight lifting reduce withdrawal symptoms such as cravings, depression, anxiety, and insomnia during detox.