Why are modern Olympians so much 'better'?

A number of records have fallen in the 2024 Paris Games.

So, why do modern athletes seem to be getting faster, stronger and just 'better' than those who came before them?

Here & Now's Scott Tong talks to journalist David Epstein, author of the book “The Sports Gene: Inside the Science of Extraordinary Athletic Performance". He wrote the book a decade ago but has kept a close eye on the physiological and technological developments in many sports since.