How nature figures out when we get our periods

We look over a study that figured out that girls with older sisters got their periods later than girls without.

Study: How early life circumstances affect menarche and menopause

We examine a review of how childhood experiences impact menarche and menopause.

Reasons you don’t have your period yet

If your period has never come, and you are older than 15, then you need to have some investigations done into why not.