What are “Normal” Menstrual Cycles?

  • The normal menstrual cycles recurs every 28 days
  • The primary hormones produced are estrogen and progesterone
  • Estrogen is very important for health

Severe Menstrual Disturbances

Amenorrhea: Absence of menstrual cycles for 3 months or longer

Two Types:

  1. Primary Amenorrhea: No menstrual cycles before age 15
  2. Secondary Amenorrhea: No menstrual cycles for 3 months or more in women who previously had menstrual cycles

IMPORTANT: Exercise does not cause you to lose your menstrual cycle. Exercise may contribute to low energy availability due to not eating properly to refuel your body after exercising.

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