Yoga has long being touted as the one-stop solution to a healthy body, mind and soul. This ancient form of physical exercise works on different parts of the body to boost its overall function and well-being.
Now a new study done by researchers from Universities of Coventry and Radboud states that yoga can also affect molecular reactions in the DNA and prevent risks of certain ailments.
Mind-body interventions (MBIs) such as meditation, yoga and Tai Chi can help reduce risk of depression and cancer by reversing the molecular reactions in DNA if practiced on a daily basis.
Stress is a common feature in our urban lifestyle. It is also one of the leading factors in causing various kinds of diseases.
When a person is exposed to a stressful event, their sympathetic nervous system (SNS) - the system responsible for the 'fight-or-flight' response - is triggered, in turn increasing production of a molecule called nuclear factor kappa B (NF-kB), which regulates how our genes are expressed.
NF-kB translates stress by activating genes to produce proteins called cytokines that cause inflammation at cellular level - a reaction that is useful as a short-lived fight-or-flight reaction, but if persistent, leads to a higher risk of cancer, accelerated aging and psychiatric disorders like depression.
The researchers through 18 studies - featuring 846 participants over 11 years - revealed a pattern in the molecular changes which happen to the body as a result of the MBIs, and how those changes benefit our mental and physical health. They explained the way that genes activate to produce proteins, which influence the biological make-up of the body, the brain and the immune system.
According to the study, people who practise MBIs exhibit the opposite effect - namely a decrease in production of NF-kB and cytokines, leading to a reversal of the pro-inflammatory gene expression pattern and a reduction in the risk of inflammation-related diseases and conditions.
Lead investigator Ivana Buric said that millions of people around the world already enjoy the health benefits of mind-body interventions like yoga or meditation, but what perhaps these people do not realise is that these benefits begin at a molecular level and can change the way our genetic code goes about its business.