For me, healthy is the key to living a wonderful life. So protect it is necessary. There are things any person can do to stay healthy. You should pay special attention taking care of your body.
Firstly, you should eat a healthy diet: healthy eating is a important part of your growth and development. Eat plenty of fruits and veriety of protein foods and low - fat dairy products.
Secondly, you should exercise regularly. Instead of having idle time, why you don't be physically active about 60 minutes of everyday.
Thirdly, you should get enough sleep. Most people need 8 hours of sleep every night. Sleep has a strong effect on your ability to concentrate and do well at school.
Alongside taking care of the body, you should learn ways to manage stress and remember that don't use stimulants which are bad for your health such as: tobacco, alcohol, drug,...