Health, Sports & Psychology
Leaving no stone unturned in the pursuit of female athletic performance
...profiles: The start of the cycle is known as the early follicular phase, when oestrogen and progesterone, the two main hormones of the cycle, are both low. The first day of the cycle is the first day of bleeding (known as the period or menstruation). The late follicular phase precedes ovulation (which usually occurs around the middle of the cycle) and is when oestrogen...