This is partly because good sleep is needed to produce enough testosterone. It leads to loud snoring, poor sleep quality, and feeling sleepy during the day. It affects strength, sex drive, energy levels, bone health, and mood. If sleep is broken, every other hormonal intervention works at a disadvantage. Among the lingering complaints men on TRT describe, poor sleep is one of the most common and the most consequential. DHEA and its sulfated form, DHEA-S, appear to influence mood regulation, stress resilience, and neurological signaling in ways that testosterone alone does not fully address. Once sleep apnea is under control, a doctor may reconsider testosterone therapy. When testosterone is added to the body through therapy, it can affect the way the brain controls breathing. Testosterone Replacement Therapy (TRT) is a common treatment for men who have low testosterone levels. Low testosterone can contribute to sleep apnea through several mechanisms. The relationship between sleep apnea and various hormonal and metabolic factors highlights the importance of a comprehensive approach to diagnosis and treatment. It’s important to note that sleep apnea and high cholesterol are also interconnected, further complicating the overall health picture for affected individuals. In secondary or relative polycythemia, symptoms usually come from the underlying condition, not the elevated hemoglobin itself. Some therapies or hormonal conditions can raise hemoglobin and hematocrit. Anything that lowers oxygen can signal the kidneys to make more red blood cells. This may occur because of low oxygen, changes in kidney signaling, certain medications or hormones, or (rarely) a bone marrow condition such as polycythemia vera.