A large portion of daily testosterone release occurs during deep sleep cycles, especially in the early part of the night. When sleep is shortened or disrupted, hormone production can be affected. Research has shown that sleep restriction can significantly lower testosterone levels, even in healthy young men. This is why sleep impacts more than just feeling rested. It also affects: • muscle recovery • strength and performance • mood and focus • overall energy levels So while training, nutrition, and supplements matter, sleep is one of the most powerful foundations for hormone balance and recovery. . . . { testosterone , muscle recovery , hormones , sleep , sleep deprivation, hormonal balance }