We provide necessary physicals for immigrants coming into the United States. Call us today to learn more about the immigration process. Martin Slavin, M.D. has been providing person-centered medical care to Brooklyn, NY and surrounding areas. Martin Slavin, M.D. has been providing person-centered medical care to Brooklyn, NY and surrounding areas since 1988. We pride ourselves on our caring and gentle touch. We welcome you to visit us today to meet one of our professionals to have them answer any questions or concerns that you may have. Most men and women begin to lose testosterone between twenty-five and thirty-five. Many start at much younger ages. It is not uncommon for some to never make enough testosterone and suffer from TD all their lives. Most men and women begin to have symptoms between thirty-five and forty-five. In many, however, symptoms first appear at much younger ages, even in the late teens. The earliest symptoms of TD are common to both sexes and involve the physical, mental, and sexual. Symptoms of testosterone deficiency may include anxiety, depression, impaired immune system, chronic fatigue, low stamina, adrenal exhaustion, low libido, muscle loss, inability to lose or gain weight, and other general imbalances. As a man, it is common for you to feel as though you have lost the stamina and virility you had as a young adult. Instead of living with this pain, let us help! Through novel testosterone replacement therapies and medical supplementation, we can help you feel like you are 16 again. Call today to learn more about your low testosterone treatment options! Testosterone is a hormone made by the body and is responsible for the normal growth and development of the male sex organs and for maintenance of other sexual characteristics. In men, testosterone is produced in the testes, the reproductive glands that also produce sperm. The amount of testosterone produced by the testes is regulated by the hypothalamus and the pituitary gland.