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Adolescence is a transitional stage of physical and psychological human development that generally occurs during the period from puberty to legal adulthood. In this period, it is necessary for a teenager to manage their health and hygiene.
Hygiene includes- 
washing your handsalso washing the rest of your bodytaking care when you are handling food and storing foodbeing careful not to cough or sneeze on others,cleaning things that you touch,throwing away things such as tissues that might have germs on them.There are many body changes occurring in our body as we go through adolescence like hair growth, development of reproductive organs, etc. So, teenagers are advised to follow some hygienic techniques.

Health:-In this stage,  young people between the ages of 10 and 19 years – are often thought of as a healthy group. Nevertheless, many adolescents do die prematurely due to accidents, suicide, violence, pregnancy related complications and other illnesses that are either preventable or treatable. Many more suffer chronic ill-health and disability. In addition, many serious diseases in adulthood have their roots in adolescence. For example, tobacco use, sexually transmitted infections including HIV, poor eating and exercise habits, lead to illness or premature death later in life.

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During adolescence there is rapid physical and mental growth ,as a result ,the hygiene and nutritional requirements of the body increase tremendously so the health and hygiene are basic concern for all adolescent .
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