reply:
1, of course health is important to humans 
2,I need to eat healthy, eat boiled gooseberries, exercise regularly and go to bed on time and have to prevent illness, when I see strange signs, I should see my doctor.
3,Some good body functions are:
+hand movements.
+breathing movements.
+foot movement.
+chest movements.
đoạn văn
Naturally There are many ways to have good health.First, considering sleep and nutrition to help prevent the onset of cold or flu, a healthy lifestyle keeps your immune system in the best possible state, giving you the best possible chance.to fight a cold or flu onset.Next, exercising regularly as it has an immune system-boosting effect can help prevent disease.Lastly, eating more fruits to provide vitamin C may prevent the common cold.Furthermore, you should drink more milk, which will keep you healthy and fight off colds.
Wish you good study ^ w ^!
Remember me the best and 5 stars thanks