Fitness among the masses" is the order of the day. Only when the foundation of Physical Education is laid in the early years of the child's life that they will be able to learn the need and importance of leading a healthy lifestyle in the years to come. A healthy child is a happy child who is the future citizen of the nation.While working on this book I realized that with a little bit of knowledge an individual's perspective can be changed and a lot can be achieved to make a person's life much better. The teenagers can bring about many changes in their lifestyle by understanding, what is happening to their bodies. They will be able to understand the ill effects of drugs. Also an awareness will be created on how to deal with obesity etc.I hope this will serve as a handbook for the children studying in class XI and it will be useful for them.