Yoga is a way of life which helps to control mind and helps in developing your personality.
In our day to day life a human being is undergoing through different kinds of Stress. He is always in search of sailing the ship on the way of happiness and peace of mind.
His real happiness lies within himself only. The stable mind and well tuned body can give him a real joy which does not vanish like our materialistic happiness. These things can be achieved through Yoga. Yoga can control the working of mind. It also helps in reducing some physical and mental disorders.
Asana is a steady and comfortable posture of body.
You can practice yoga in the afternoon also But your stomach should be empty while practicing. Considering our schedules, the time early in the morning is most suitable for study. The evening time about 4 hours after lunch is also suitable for practice, provided no additional food is taken in between.
Early in the morning. But if not possible then , You can practice Yoga in the evening at least Four hours after your lunch.
Yoga is the Science as a whole. Yogic practices which are used for curing physical and mental disorders are referred as Yogic Techniques.