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Questions of A More Technical Nature

Type O and Yoga


I was curious as to why you did not include yoga as an exercise option for Type O blood types? Some styles of yoga (such as Ashtanga or Viniyoga) can be aerobic and physically challenging. I am a Type O and I have practiced yoga for two years and I have found it highly beneficial.


Yoga is a great form of exercise for anyone who is willing to devote sufficient time to master it. However, in type O it is not the preferred method of blunting the chemical effects of stress, as it is for type A.

Elevated catecholamines (adrenaline and nor-adrenaline) are more characteristic of type O's when under stress and for this vigorous exercise is preferred. Also, yoga is insufficient for type O's to maintain active tissue mass (the tissue in our body that is metabolically active). However yoga is effective at lowering cortisol (a stress hormone) which is generally a type A stress response.

So, should O's avoid yoga? No, if it is part of an exercise regimen that included sufficient cardio and some resistance training. Then yoga can be practiced by type O's as well.

The Ask Dr. D'Adamo internet advice column ran from 1996 to 2009, at which time Dr. D'Adamo's teaching and programming responsibilities no longer allowed him to devote time and resources to directly answering visitor questions. However we've recently reorganized this treasure-trove of material and made it again available to his readership. He occasionally posts new entries. These are marked with a NEW tag.

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