L-theanine is an amino acid found in tea leaves that promotes relaxation without drowsiness. Research shows it can improve sleep quality by reducing anxiety and enhancing alpha brain wave activity.
Vitamin D deficiency affects nearly half of adults and may significantly impact testosterone production. Understanding this connection can help optimize hormonal health through targeted nutrition.
Testosterone naturally declines after age 30, but targeted nutrition, exercise, and evidence-based supplementation can help maintain healthy levels in your 40s.
