Im not trying to be THAT guy im just trying to pass on some knowledge







They both involve the endocrine system but they are both the exact opposite reactions.

Periods are the female reproductive system cleansing and resetting itself to prepare for ovulation

Heat cycles are natural urges to become pregnant when the egg is at its peak to becoming fertilized.





But only humans, primates, and elephants can experience periods, all other mammals experience estrous cycles.



