Testosterone has advantages to a male’s physical state before and after as not only does it form a male’s organs in conception but also increases at puberty in later development. Testosterone allows the testes to produce and grow, producing regular sperm with levels of testosterone increasing right through puberty. This is shown in a male’s voice, by becoming deeper. Also, growth in pubic hair and muscle density to grow strong and form allowing manly features to show and along with this comes an increase in sexual desires and competitiveness.In male testosterone increases neurotransmitters which help tissue to grow, which in turn testosterone increases levels of hormone growth, making exercise more likely to build muscle. This is known as Gonadal hormones and as it helps males bulk where females do not bulk as easily. The gonadal hormone is what controls the reproductive functions in testosterone and oestrogen and identifies a woman from a man biologically. While testosterone has its advantages, it also has disadvantages as men with low levels of testosterone may experience erectile dysfunction. A person can feel a loss of confidence, with no sex drive and feel low on energy levels which results in weight gain and sweating of the body as the body is unable to regulate its body temperature. The body temperature stays regulated due to the anterior pituitary gland (frontal gland) as this is under the control of hormones secreted by the hypothalamus (brain). Hormones released from the hypothalamus is sent down the axon, which is then connected to the pituitary gland, then carried to the anterior gland which release tropic hormones. These hormones help keep the body in a regular state.