Hormones are specialist chemical messengers that provide a communication system between different parts of the body. They affect everything from growth and metabolism to appetite and mood, while also playing a vital role in puberty and fertility. When hormone imbalances occur, they can lead to a number of health issues, including infertility and menopausal problems in women. Medicare PLUS is using saliva testing to identify these hormone level imbalances for individuals across Slovenia and further afield.