women are fertile for an average of 40 years.
they have their period every 28 days.
that makes a total of 521 times.
women bleed for an average of 5 days.
that makes a total of 2607 days, or about 7 years.
again, women bleed for 7 years.
on average a woman loses about 150ml of blood during every period.
that makes 391 liters of 15.4k blood in their life.
an average man has 6 liters of blood.
it takes the blood of 65 men to 210 measure up to one woman's blood loss.