The Healthy Male Study is a clinical research trial designed for healthy men between the ages of 58 and 70. Participants will take part in a total of 14 study visits over 18 weeks, beginning with a screening visit. Those who qualify will complete a 5-day in-clinic admission followed by 8 scheduled follow-up visits. The study involves an investigational injection and aims to gather valuable health data from older adult males. Eligible participants will receive $2,175 for their time and commitment.