Detailed close-up of human skin texture, showcasing natural wrinkles and pores.

Built to Go the Distance

Humans are unusual apes: thin hair and about 2 million sweat glands keep us cool.

Humans: Engineered for Endurance

Male athlete competing in a street marathon, showcasing endurance and determination.

Endurance Over Speed

We’re long‑distance runners, but slower sprinters; our bodies avoid heat exhaustion over long runs.

Humans: Engineered for Endurance