Read the passage and fill in the blanks with the proper words：（在空格内填入合适的词，使其内容通顺，每空格限填一词，首字母已给）：7%

We get sick from time to time．We have either a headache or a toothache，a stomach ache or a backache．We have high or low blood pressure．
If you have serious p（67） with your health，you should go to see the doctor．The doctor will examine you，X-ray your chest and check your lungs．The doctor will tell you what to do or give you an operation if necessary．
But not only doctors can improve our health．It is important to u（68） that people themselves should take care of their health．If you want to be healthy，you should go in for sports，take vitamins，go on a diet，give up smoking or drinking．W（69） the doctor's advice，you shouldn't take medicine．It is d（70） for our health．The wise English proverb says："An apple a day keeps the doctor away．"We must remember that s（71） we cause illness ourselves．Here are some rules for those who want to be healthy．
•You should s（72） 8---9hours．
•You should eat enough fruit and vegetables．
•You should have medical checks o（73） a year．
•You should go for walks．
•You should give up all your bad habits..