Every one of us has had a . But do you know about headaches? What may cause (造成) them? And what should we do we have a headache? When should we go to a doctor?
A headache is not a disease (疾病), but it may show that (anything) in your body is wrong. We may have more than one headache each month.
Usually a fever some other illnesses (疾病) may cause headaches. You may get headache when you work too hard. You may get a headache when you can't get enough sleep. You may get a headache when you exercise on an empty (空的) stomach.
What should you do if you have a headache? You should lie and have a good . You should (get) enough sleep. You shouldn't take exercise on an empty stomach.
If you always have headaches, you need (see) a doctor.
