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Pavel Tsatsouline – StrongFirst – Second Wind express
Why hyperventilation is a very bad idea…Extraordinary performance, health, and relaxation benefits of carbon dioxide…4 types of low tech hypercapnic training…
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$80.00$399.00 -
Strongfirst – Second Wind Express
Breathing practices shrouded in mysticism were developed around the world and more are still sprouting today—some effective, others harmful, many pure psychobabble.
SalePage
$80.00$399.00