Even doctors agree that laughing makes your body and mind feel better. It seems that the act of smiling or laughing sends chemical messages to the brain and affects a person’s mood. Because they feel happier, they feel better. Stress is reduced and anger and tension begin to disappear. Your mind is at peace and so you feel happier and more able to cope with life’s problems.

Laughing and smiling also have the same effect on the body. They improve the body’s ability to stay fit and healthy because the person’s immune system is activated. This means that any germs(病菌) in the body are attacked and killed by these immune system cells. Some doctors even think that skin conditions, such as skin rashes (疹) which may be due to psychological factors, will improve if the person has a good laugh every day. Serious people may not live as long as people who take life less seriously. When you laugh your muscles “contract” (收缩) and relax. This is not the case with very serious people. So a sense of humour is important for a good and healthy life and to remain a fit and strong person you need to laugh and smile for at least ten minutes every day!

【小题1】How can laughter make you feel less pain?

A．By exercising your muscles.	B．By improving your immune system.
C．By producing certain chemicals in your body.	D．By producing new cells.

【小题2】When you laugh, ________.

A．your muscles tighten and then relax	B．you can’t think well and react quickly
C．you can hardly breathe for a while	D．your skin reacts more sensitively

【小题3】What can we conclude from the passage?

A．Laughter can help you live longer.

B．Funny movies can help you with better breathing.

C．Jokes and humour can make you more decisive.

D．People with a good sense of humour don’t get heart disease.