A recent study found that body fat percentage was the strongest predictor of male attractiveness. The most attractive bodies had around 13–14% body fat — a level linked to optimal metabolic health.

Nutella was invented during World War II by an Italian pastry maker named Pietro Ferrero, who mixed hazelnuts into chocolate to stretch his limited chocolate supply.

People with fewer, less-diverse gut microbes are more prone to cognitive impairment, including dementia. Fresh fruit and regular exercise promote gut microbiota growth, potentially protecting against these conditions.

America has been at war for 93% of its history - 222 out of 239 years since 1776. That means the U.S. has known less than 20 years of peace in over 200 years since the nation was founded.

Most supermarket fruit that you eat is a clone, grown from grafted branches for uniform taste, size, and appearance. Without cloning, quality would vary, and maintaining disease resistance would be more difficult.

A study of over 2,000 people found that using the sauna 4 to 7 times a week was associated with a 40% decrease in death from all causes. Additionally, saunas can boost metabolism by around 20%.

Studies show that male peacocks sometimes make fake mating sounds to appear more popular, increasing their chances of attracting a mate.