Modern life makes us tired, right? But research from societies in Africa and South America suggests people in the ancient world slept only 6.5 hours a night.

Modern life makes us tired, right? But research from societies in Africa and South America suggests people in the ancient ...

Training sei dabei natürlich nur ein Aspekt für den Erfolg, wie Klaus-Peter Stoecker weiter erzählt. Geld werde für so etwas ...