I like smoking and I smoke a lot. Two weeks ago, I started having problems breathing and I had a pain in my chest (胸膛). I am very worried. What can I do?

I hardly ever exercise. I catch a cold easily. When I catch a cold, I usually have a fever and a headache. It bothers (困扰) me a lot.

I am a music teacher in a middle school. I have lessons from Monday to Friday. I often have a sore throat and sometimes I can't eat anything. What should I do?

I played computer games all day yesterday. When I woke up this morning, there was a pain in my neck and I can't even move it now.

I fell down and hurt my left knee when playing basketball with my friends just now. It keeps bleeding now. What should I do?

A. Eating too much chocolate is bad for your teeth. After meals and before bedtime, you need to brush your teeth. If you still have a toothache, you must go to the dentist.

B. Firstly, you should stay away from your computer. Playing computer games too much is bad for your body. Secondly, try massaging (按摩)your neck to help to relax it. I believe you will feel better soon.

C. Take some medicine and drink much hot water to help stop the fever and headache when you get a cold. Also, you need to do exercise every day to make your body stronger so that you won't get a cold easily.

D. Why don't you lie down and have a good rest? Also, you could close your eyes or look at some green plants to rest them after watching the screen for long. But if your eyes still hurt, then go to the hospital.

E. Don't worry. Let me tell you how to deal with it. You should run the cut under water first. And then put some medicine and a bandage on it.

F. I think you should go to the hospital and take a chest X-ray first, and then follow what the doctor asks you to do. The most importantly, I think you should give up smoking.

G. Why not drink some hot tea with honey as soon as possible? It works very well. If your throat still hurts, then I think it's necessary for you to see a doctor.