You can time sex better if you know when you ovulate. How to use our free ovulation calendar: if you don't know the length of your menstrual cycle or your luteal phase, you can leave these at their default values (menstrual cycle: 28 days, luteal phase: 14 days).
Testosterone is a steroid hormone from the androgen group and is found in humans and other vertebrates. In humans and other mammals, testosterone is secreted primarily by the testicles of males and, to a lesser extent, the ovaries of females. Small amounts are also secreted by the adrenal glands.It is the principal male sex hormone and an anabolic steroid.n humans and other mammals, testosterone is secreted primarily by the testicles of males and, to a lesser extent, the ovaries of females. Small amounts are also secreted by the adrenal glands. It is the principal male sex hormone and an anabolic steroid.
Society for Endocrinology. Hormones. Testosterone is a hormone which is responsible for many of the physical characteristics specific to adult males.It plays a key role in reproduction and the maintenance of bone and muscle strength. Alternative names for testosterone. Testo (brand name for testosterone formulations); 4-androsten-17Î²-ol-3-one.