A cold is a common illness. It often starts with a sore throat. And you usually have a headache, too. It's not serious,但是你会感到不舒服.
What should you do when you have a cold?首先你应该好好休息. It's good to drink a lot of hot water, too. You can see a doctor and take some medicine.
What should you do to stop a cold? One important way is to exercise more often. Running, swimming or even walking can help a lot. Try to exercise for at least 30 minutes a day. It's also important to go to bed and get up early. Studies show that the cold or flu virus （流感病毒） can live on our hands for a long time. So you should often wash your hands with soap. Finally, it's important to have a balanced diet （均衡饮食）.
If you can do these, you will hardly ever catch a cold again.
