Researchers say it may take far less exercise than people had thought to lower the risk of heart disease especially for the highest risk group, middle-aged men.

• 研究人员表示,想要减低罹患心脏病的机率,并不像一般人所认为的要做许多运动,尤其是针对高危险群的中年男人而言。他们想要鼓励人们真正走出运动的第一步。觉得这句话不是太好理解。