Birth control pills are harmful in many ways. For example,

birth control can also change the type of man they find attractive based on their features. Women off of the pill tend to be more attracted to men who have conventionally "masculine" features, while women on the pill don't prioritize attractiveness as much, according to research published in Proceedings of the National Academy of Science. Because of this, sometimes women who get off the pill while in a relationship may find that they are less attracted to their partner if they got together with him while on the pill.

Birth control pills damage gut flora, which probably explains the following since a damaged gut can't absorb nutrition efficiently.

hormonal birth control might also be associated with an increased risk for depression, according to a study from the journal JAMA Psychiatry. Another study published in Fertility and Sterility found mood, well-being, self-control, energy levels, and general happiness with life were all negatively affected by being on the pill.

Both quotes above from https://www.bustle.com/p/7-shocking-ways-your-birth-control-changes-who-youre-attracted-to-more-9306630

Additional studies suggest that this flat-lining of the stress response (although overall cortisol levels remain high) can continue even after a woman stops taking the pill. It seems that pill-taking women are so overwhelmed with chronic high cortisol signaling that the HPA axis tries to shut down. This can lead to issues such as brain-volume loss, mental health disturbances (including major depression) and even immune system malfunction.

https://www.westonaprice.org/book-reviews/this-is-your-brain-on-birth-control-by-sarah-e-hill/

Sample of what, 4? All sharing similar genetics. Doesn't mean by won't cause this gal problems.

It's been my experience that all things being equal, women who avoid bc age better