《BMJ》对 150,000 名成年人进行的研究发现，与不锻炼者相比，每周锻炼一到两次、每次 30-60 分钟的死亡风险可降低 15%。 150,000-adult study in BMJ found exercising once or twice weekly for 30-60 min reduced death risk by 15% compared to non-exercisers.

海得拉巴的神经科医生苏迪尔·库马尔博士表示，即使每周锻炼一次也比没有体力活动好。 Dr. Sudhir Kumar, a Hyderabad-based neurologist, said exercising even once a week is better than no physical activity. 《BMJ》杂志上的一项研究对 150,000 名成年人进行了二十年的跟踪研究，发现每周锻炼一到两次的人比不锻炼的人死亡风险降低 15%。 A study in the BMJ journal followed 150,000 adults for two decades and found that people who exercised once or twice per week had a 15% lower risk of death compared to those who did not exercise. 当运动时间至少为 30-60 分钟时，就会看到好处。 The benefits were seen when the exercise duration was at least 30-60 minutes.