Tsimane Of Bolivia

The Tsimane women of Bolivia are often revered as among the most fertile in the world - on average having 10 children in their lifetimes - but some are even more fertile than others.

Don't blame the modern lifestyle for not getting enough sleep, as our pre-industrial ancestors too did not have eight hours of sleep and daytime naps, a new study suggests.

The Tsimane women of Bolivia are often revered as among the most fertile in the world - on average having 10 children in their lifetimes - but some are even more fertile than others.

Don't blame the modern lifestyle for not getting enough sleep, as our pre-industrial ancestors too did not have eight hours of sleep and daytime naps, a new study suggests.