Reading Time: 2 minutesIntroduction Androgenetic alopecia (AGA), commonly known as male pattern baldness, affects approximately 50% of American men by age 50, exerting profound psychological and socioeconomic impacts. While genetic predisposition and dihydrotestosterone (DHT) sensitivity are primary drivers, emerging evidence implicates modifiable lifestyle factors. This article synthesizes findings from the American Male Hair Health Longitudinal Study (AMHHS), a 10-year prospective cohort tracking 5,247 men aged 25-65 across 12 U.S. states. Initiated in 2013, the study rigorously assessed smoking, alcohol intake, and physical exercise in relation to AGA progression, measured via the Hamilton-Norwood scale. By employing validated questionnaires, biochemical assays, and dermatoscopic evaluations, AMHHS … Continue reading →