How does yoga help lower anxiety levels?

Hannah Lovegrove Iyengar Yoga

There is an interesting article at Psychology Today on yoga stating :”Evidence that yoga can enhance anxiety-killing neurotransmitters in the brain”:

01 Urdhva Pras PadWhy does yoga help and a flood of alcohol hurt? Well, the money is on GABA. Gamma-aminobutryic acid is a neurotransmitter I’ve made brief mention of before. GABA is the chief inhibitory neurotransmitter in the mammalian nervous system. It cools things off and chills things out. People with depression and anxiety have been shown to have low amounts of GABA in their cerebrospinal fluid. MRI spectroscopy has been used to estimate the amount of GABA in people who are depressed, and the levels are low compared to controls.
In 2010 the same group at BU did a second, somewhat larger study comparing walkers and yoga practitioners. Again, healthy people were studied, not anyone with psychiatric illness. This time, 19 yoga practitioners and 15 walkers did yoga or walked for…

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