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Littler et al
A study from the Journal of the American Medical Association found that restricting sleep to 5 hours per night for one week reduced testosterone levels by 10 to 15 percent in young healthy men (Leproult & Van Cauter, 2011)
Ana Lisa Carr (credentials not independently confirmed) Pharmacy arrangement: medication may be prepared by a licensed pharmacy if prescribed
Limiting alcohol consumption and sugary drinks can also make a significant difference
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