Sleep: Yes, sleep is number one—the next frontier of performance breakthroughs in all sports, especially endurance sports. Your athletic pursuits require you to sleep significantly more than if you weren’t training. Reject conventional wisdom’s “eight hours” recommendation and individualize your approach, honoring these two maxims: minimize artificial light and digital stimulation after dark; and awaken each morning, without an alarm, refreshed and energized. If you are training more, sleep more. If you can’t honor the aforementioned maxims, stop training until you can. If you fall short of
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