Yoga is a philosophical system and a practical method in which people primarily use different body positions and breathing techniques to achieve inner peace and balance. The origins of yoga lie in ancient India. As well as the physical effects of training, yoga also offers an opportunity to experience and deepen a sense of self-awareness, leading to a better awareness and control of bodily functions. The exercises also strengthen skeletal muscles, optimise the respiratory, circulatory and metabolic functions, improve stress regulation and "retune" the nervous system.