200306 Physical activity

1. Regular physical activity can lower your risk of heart and circulatory disease by 35%. Your heart starts to beat faster, pumping more blood to the muscles you are using. Your heart is also a muscle. If you are active regularly, it gets bigger and stronger. 2. Regular physical activity can improve your memory and attention span. Over time the bit of the brain involved in memory and learning seems to get bigger. 3. Long-term physical activity leads to a lower resting heart rate and lower blood pressure. This helps cut your risk of heart and circulatory disease. And there are more reasons to smile. When you're active, your brain produces chemicals called endorphins. These reduce feelings of pain and make you feel more positive. 4. Aim for 150 minutes of moderate-intensity activity per week. Try to be active every day. Every 10 minutes counts. 定期的身体锻炼能够降低30%患心脏和循环系统疾病的风险。你的心脏开始跳动得更快，把更多的血液输送到你正在使用的肌肉中。心脏本身也是一块肌肉。如果你定期锻炼，它会变得越来越大，越来越强壮。 定期的身体锻炼能够提高你的记忆力，延长注意力的持续时间。随着时间变化，涉及到记忆力和学习的这部分大脑会变得更强大。 长期的身体锻炼能够降低静息心率，降低血压。这会帮助你降低患心脏或者循环系统疾病的风险。还有更多开心的理由，当你活动时，你的大脑会产生一种叫“内啡肽”的化学物质。这些物质会减少疼痛感，并且让你感到更加积极向上。 力求每周150分钟中强度的运动。努力每天都保持运动。每十分钟的运动都会起到作用。