the number of red blood cells. Think of red blood cells as your very own Popeye’s spinach, only they come from your body instead of out of a can. Upping the presence of red blood cells translates into improved oxygen delivery to the muscles, a reduction of lactic acid buildup, and stronger overall performance, including longer endurance and a lower risk of inflammation and injury. But of course the catch is that high-altitude training is not available to most of us—which brings me to the goal of this book. You don’t need to go to the mountain. The mountain can come to you.
