生活百科：健康生活系列之四——如何保持健康

STEP 1 Get plenty of sleep 多睡覺

Get plenty of sleep. Your body needs 7 to 8 1/2 hours a night. Many metabolic processes occur when you're sleeping.

There is nothing wrong with taking a nap if you need one.

STEP 2 Exercise 鍛煉

Exercise when you can. Exercise is important for both your mental and physical health.

STEP 3 Don't stress 不要有太大壓力

Don't stress out. Set aside a few minutes of quiet time each day, shutting out all distractions, to calm down and gain focus.

Learn to say "no." You don't have time for absolutely everything; some things just have to wait.

STEP 4 Brush your teeth 刷牙

Brush your teeth and gums. Your dental health has more to do with your overall health than you might think.

STEP 5 Be social 要有社交活動(dòng)

Be social. Health is more than just your physical well-being. You need to have emotional needs met and that means maintaining family and friend relationships. Surround yourself with people who care about you for your whole happy, healthy life.

World Health Day was started in 1948 by the first World Health Assembly.