the.com/menstrual
The body's monthly memo that no fertilization happened this time around.
means Relating to menstruation, the roughly monthly shedding of the uterine lining when pregnancy doesn't occur.
from From Latin menstruus, meaning monthly, rooted in mensis, month — itself tied to moon, the original calendar.
Lunar linkMonth and moon share the same ancient root.
Cycle lengthRoughly 28 days, but anywhere from 21 to 35.
Lifetime tallyAbout 400 periods across an average lifetime.