Best stress reduction techniques

This is based off of Andrew Huberman's amazing lab work. This is called the 'physiological sigh'. In his opinion, this is the most effective way to calm down and get yourself into the parasympathetic nervous system (rest & digest). Humans spontaneously use physiological sighs without realizing, in claustrophobic environments or in deep sleep when there is a build-up of carbon dioxide in the blood stream. This breathing pattern helps offload carbon dioxide whilst increasing oxygen intake, helping us to relax.
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