system by decreasing white cell count and NK cells that are
necessary for the body to fight any infection. Researchers have
discovered that yoga could help to boost the immune system.
Bhargav, Metri, Rahuram, Ramarao, and Koka (2012)
explained that “yoga therapy has the potential to reduce
[cancer] cell survival, self -renewal and tumor growth” (p.
261). Lower dysfunctions on a molecular and a cellular levels
together with enhanced NK activity and less DNA damage
were noticed in people who practiced yoga frequently.
As Chaoul and Cohen (2010) mentioned stress affects
respiratory, cardiovascular, and endocrine functions by
reducing oxygen supply and by increasing respiratory
infections, blood pressure, heart rate, and stress hormone
(cortisol) level. The research that was focused on body- mind
relationship revealed the ability of yoga to control cortisol level.
Deep breathing helped to increase oxygenation and perfusion
resulting in an improved function of the lungs and a heart.
Focused breathing calmed the mind resulting in relaxation
response during which parasympathetic NS took over
sympathetic; thus, reducing negative effects of stress (p.150).
In their trial Dhruva et al. (2012) confirmed that breathing
exercises played a significant role in reducing anxiety, fear,