Testosterone does not increase size in adults. However, it plays a critical role in the development and maintenance of male reproductive tissues and secondary sex characteristics. In adults, testosterone is essential for bone density, fat distribution, muscle mass, red blood cell production, and libido [1].
What does testosterone do in the adult body?
In adult males, testosterone is produced primarily in the testes and is responsible for maintaining several key bodily functions. It supports the development and maintenance of muscle mass and strength, contributes to bone density, and influences fat distribution. Testosterone also plays a role in red blood cell production, sperm production, and sex drive (libido) [1].
Can low testosterone cause health problems in adults?
Low testosterone levels in adult men, also known as hypogonadism, can lead to a range of health issues. These can include decreased libido, fatigue, depression, loss of muscle mass, increased body fat, reduced bone density which can lead to osteoporosis, and difficulties with erection [2]. It can also impact fertility by affecting sperm production [3].
Are there treatments for low testosterone?
Testosterone replacement therapy (TRT) is a treatment option for men diagnosed with hypogonadism. TRT aims to restore testosterone levels to a normal range, which can help alleviate the symptoms associated with low testosterone. The method of administration for TRT can include injections, skin patches, gels, or pellets [4]. The decision to undergo TRT should be made in consultation with a healthcare professional who can assess the individual's condition and discuss potential benefits and risks [2].
When do testosterone levels typically decline?
Testosterone levels in men typically begin to decline gradually after the age of 30 [5]. This age-related decrease is a natural process, and the rate of decline can vary among individuals. While some men experience noticeable symptoms from this decline, others may not [2].