The oxygen advantage : the simple, scientifically proven breathing techniques for a healthier, slimmer, faster, and fitter you
by McKeown, Patrick (Author)
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Summary
"Learn how you can: increase your exercise intensity while expending less effort and breathing less heavily; achieve your perfect weight by suppressing your appetite naturally; improve your energy levels and mental focus; have far greater control of your asthma for the rest of your life; achieve a p... Full description