研究表明，每周锻炼 2-3 次可降低失眠风险。 Study shows exercise 2-3 times a week lowers insomnia risk.

BMJ Open 的研究发现，每周锻炼 2-3 次可显着降低失眠风险。 Study in BMJ Open finds exercising 2-3 times a week significantly reduces risk of insomnia. 与不运动的人相比，长期锻炼的人正常睡眠（每晚 6-9 小时）的可能性高出 55%。 Long-term exercisers were 55% more likely to be normal sleepers (6-9 hours per night) than inactive individuals. 定期锻炼与降低失眠症状和极端睡眠时间的风险有关。 Regular exercise was linked to a lower risk of insomnia symptoms and extreme sleep duration. 运动可以通过促进放松、减轻压力和改善情绪来改善睡眠质量和持续时间。 Exercise may improve sleep quality and duration by promoting relaxation, reducing stress, and enhancing mood.