Extensive research has shown that relaxation practices like restorative yoga have tangible effects: They lower cortisol (a chemical messenger involved in the stress response), can
support subcutaneous fat loss, increase immunity, and promote digestion in the belly brain, our mood regulator.
While there is definitely
support for larger deposits of
subcutaneous fat providing more insulation in cold environments, there is no real hard evidence to suggest that we actually respond to cold by adding more
fat.