Engage in at least 30 minutes of moderate to vigorous physical activity on 5 or more days per week;

坚持至少30分钟适度的有活力的体力活动，每周至少5天。

youdao

The researchers say their findings support the idea that moderate to vigorous activity at all ages improves length and quality of life.

研究者表示，他们的发现支持了样一种观点，即在任何年龄段，中等至激烈程度的运动都有助于延长寿命、提高生命质量。

youdao

They found that those who were most fit from moderate to vigorous exercise had a 37 percent lower risk of a stroke than those who were least fit.

他们发现，最适应中度至重度运动的人们比最不适应的人们中风的风险低了37%。

youdao

The survey questioned people on the number of times they completed at least 30 minutes of moderate to vigorous activity or 60 minutes for children.

BBC: Welsh health survey: One in three take no exercise

According to the Physical Activity Guidelines for Americans, children and adolescents need at least 60 minutes of moderate to vigorous physical activity each day to stay healthy.

WHITEHOUSE: The White House

Men who were the most physically active, doing 15 hours or more of moderate to vigorous exercise each week by playing football, baseball or basketball for example, had sperm counts which were 73% higher than those who were least physically active.

BBC: Prolonged TV viewing linked to lower sperm count