We all know how good it feels to have a good night’s sleep. Solid deep sleep not only sets us up for peak physical performance, but also improved mental performance. Having a positive attitude definitely affects our physical performance, but in order to perform maximally the body needs to be fully recovered. Without enough deep sleep many physiological and hormonal shifts can occur. Sleep deprivation causes a decrease in growth hormones, testosterone, elevation of cortisol, and insulin resistance can develop. Lack ...
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