Sexually transmitted diseases (STDs) are infections that are passed from one person to another through sexual contact. The causes of STDs are bacteria, parasites, yeast, and viruses. There are more than 20 types of STDs, including. Chlamydia. Genital herpes. Gonorrhea.
Society for Endocrinology. Hormones. Oxytocin is a hormone that acts on organs in the body (including the breast and uterus) and as a chemical messenger in the brain controlling key aspects of the reproductive system including childbirth and lactation, and aspects of human behaviour.
By Wikipedia ~ 8 min read. Pages: 1 2 All. Oxytocin (Greek, âquick birthâ) is a mammalian hormone that also acts as a neurotransmitter in the brain. In humans, oxytocin is thought to be released during hugging, touching, and orgasm in both sexes.In the brain, oxytocin is involved in social recognition and bonding, and may be involved in the formation of trust between people and generosity.[1][2][3].n humans, oxytocin is thought to be released during hugging, touching, and orgasm in both sexes.