Pal, R., Singh, S., Chatterjee, A., & Saha, M. (2014). Age-related changes in cardiovascular system, autonomic functions, and levels of BDNF of healthy active males: role of yogic practice. Age, 36(4), 1–17.
10 Healthbenefitsof Yoga. (2018, December 19).
Nichols, H. (2018, September 25). Yoga: Methods, types, philosophy, and risks.
Borohhov, D. (n.d.). Yoga - What is Yoga? - Definition of the Sanskrit Word.