Why Are Humans So Hairless?

Ever wondered why humans aren’t as furry as our mammalian cousins? The answer lies in our evolutionary journey.

The Evolution of Hairlessness

Over millions of years, a select group of mammals, including us humans, evolved to shed their thick fur. This transformation wasn’t just about aesthetics; it was about survival.

Sweating and Survival

Scientists believe this hair reduction is directly linked to our ability to sweat. As humans became more active, sweating emerged as a highly efficient way to cool down and regulate body temperature, especially in hot climates. Less hair meant sweat could evaporate more easily, preventing overheating and giving our ancestors a significant advantage.