Complete the following summary from (30-40) use words from the box. There are more words in the box than you need. Some may be used more than once.

The most usual cause of headache is 1. __________________Headache can also come as a result of excessive 2. _________________. Some people say they get a headache when they 3.________________This is probably because they get very 4. _______________. It may also be because they are working in poor light which makes them very 5. ______________. It is helpful if your reading material is on a bookrest at 6._______________to the desk. It is also important to 7.______________in bed. You may even get a headache because you 8._______________too hard. The best advice is to try to eat regular meals, get enough. 9. __________________ and avoid 10. ______________ places. These places can also do you serious 11. ______________damage.