Decrease in serum cortisol during yoga exercise is correlated with alpha wave activation. Kamei T, Toriumi Y, Kimura H, Ohno S, Kumano H, Kimura K.

Percept Mot Skills 2000 Jun;90(3 Pt 1):1027-32

Shimane Institute of Health Science, Izumo, Japan.

We examined changes in brain waves and blood levels of serum cortisol during yoga exercise in 7 yoga instructors and found that alpha waves increased and serum cortisol decreased. These two measures were negatively correlated (r = -.83). Comparison with a control group of nonpractitioners is desirable.

Categories: Brain