定期锻炼可将全因死亡风险降低 30-35%。它对抑郁症、焦虑症、2 型糖尿病和心血管疾病的疗效比大多数药物更有效。而且它是免费的。来源：世卫组织体育活动指南 / 多项荟萃分析。Regular exercise reduces all-cause mortality risk by 30-35%. It is more effective than most medications for depression, anxiety, type 2 diabetes, and cardiovascular disease. And it is free. Source: WHO physical activity guidelines / multiple meta-analyses.