一项新研究发现,每周进行3 h一定强度的锻炼可以使男性心脏病危险降低22%。哈佛大学公共卫生学院科学家完成的这项新研究还发现,心脏病危险降低的这部分中,大约38%得益于锻炼可提高男性“好胆固醇”(HDL高密度脂蛋白)水平。新研究调查了参与“卫生职业者随访研究”(HPFS)的 A new study found that a moderate 3-hour workout a week reduced the risk of heart disease in men by 22%. The new study, done by scientists at the Harvard School of Public Health, also found that about 38% of those who had a reduced risk of heart disease benefited from exercise to improve men’s “good cholesterol” (HDL HDL) levels. New study investigates participation in Health Professions Follow-up Study (HPFS)