1 Laboratory animal practice-Some veterinarians work in a university or industrial laboratory and are responsible for the care and treatment of laboratory animals of any species (often involving bovines, porcine species, felines, canines, rodents, and even exotic animals).
High estrogen levels in men contribute to prostate cancer and heart disease as well as gynecomastia (enlarged breasts).As the testosterone is transformed into estrogen the low levels of testosterone can cause many unpleasant symptoms including loss of muscle mass, fatigue, low libido, erectile dysfunction.s teenagers, men have high levels of testosterone and low levels of estrogen. As they age, testosterone levels in men decrease while their estrogen levels increase.
Androgenetic alopecia in men is what is known as male-pattern baldness -- hair loss that starts at the front of the scalp and recedes backward over time, and hair in the center of the scalp thins and falls out. In women, this instead results in uniform hair thinning.