Sit in Easy pose with your spine erect. Practice complete yogic breathing - inhale slowly filling your abdomen, then your chest, then your upper chest. Hold briefly. Exhale slowly in reverse order, emptying upper chest, then chest, then abdomen. Each inhalation and exhalation should take 5-6 seconds. Continue this for 5 minutes with full concentration on your breathing.
Benefits: Controls blood pressure and functioning of the heart. Complete yogic breathing ensures maximum oxygen intake which strengthens the heart muscles and improves cardiovascular function. Regular practice helps in prevention of heart disease.