Yes, sleep can affect hemoglobin levels, primarily through its influence on hormone production.
Small experimental studies suggest a link between sleep and hemoglobin (Hgb) levels. The connection is primarily attributed to sleep's impact on hormone production, specifically testosterone. Testosterone is known to stimulate the production of red blood cells, which in turn increases hemoglobin and hematocrit (Hct) levels.
Therefore, adequate sleep may lead to increased hemoglobin levels, potentially more so in men due to higher testosterone levels. This aligns with the restorative function of sleep, contributing to overall physiological balance.
While the impact exists, further research with larger sample sizes and diverse populations is necessary to fully understand the extent and nuances of this relationship. The specific mechanisms and the degree to which sleep affects hemoglobin remain areas for continued investigation.