We have recommended Host Defense products for several years now.  This product, in particular, has had astounding effects to cardiovascular capacity and function that has been repeated by both clinicians and patients.  Dr. Q has been able to find a consistent 20% increase in cardiovascular capacity when exercising lasting 30 – 45 minutes.  He has also found that it is 90% effective as an asthmas inhaler during illness, allergies, or sport induced moments.  He has noticed, however, that the results take approximately 5 minutes to go into effect.  These two pieces of information are worth significant thought and conversation.  Additionally, this extract is simply edible mushrooms put through an alcohol extract.  This means that it is essentially food and has no possibility of overdose or significant medicine interaction.  With current viral concerns, this is an easy supportive measure for anyone who feels respiratory vulnerability.