Pranayam
Pranayama is the yogic practice of focusing on breath. In Sanskrit, prana means "vital life force", and yama means to gain control. In yoga, breath is associated with the prana, thus, pranayama is a means to The practice of pranayama involves breathing exercises and patterns . You purposely inhale, exhale, and hold your breath in a specific sequence. In yoga, pranayama is used with other practices like physical postures (asanas) and meditation (dhyana). Daily pranayama trains the lungs and improves the capacity of respiratory system immensely . Pranayama directly works on the nervous system. Daily Pranayama positively affects autonomic nervous system which controls and governs essential functions of the body like the heart rate, respiration and blood pressure etc.