52. Population Control
This historical tidbit is pretty concerning. There were some ancient cultures and societies that had a unique way of controlling the growth of their population. These societies had figured out that a certain ratio of body fat is required for a successful pregnancy. To prevent overpopulation, they would allegedly deprive child-bearing women fats and carbs.

By doing this, these populations would reduce the chances of women having viable pregnancies. The thought of a culture actively starving child-bearing people is pretty disturbing. We don’t know which ancient societies did this, so we kind of hope it’s just a rumor. Who knows, though. It’s entirely possible this happened.