Foods affect the mind and body. Food is divided into satvic, rajasic and tamasic foods. Satvic foods are pure ,wholesome foods recommended in yoga. Before yoga classes one should avoid meals an hour before practice. Avoid caffeine drinks and alcohol.
Hatha yoga is the most common yoga.
Ha means the sun, tha means the moons. Hence Hatha is the attempt to balance the sun and moon in each of us with postures, breathing, and diet, prayers and ultimately to liberate us from this human bondage. Kundalini is the dormant energy at the base of the spine. This potent energy will awaken on its own in the right time. As the Kundalini awakens it affects the chakras and awaken them gradually to its full potential.