It's a little-known factor to take into account when your kids are at the pool, drowning experts say.
We're learning how to swim as adults – and loving every minute.
Know someone who lives for hiking, camping or wild swimming? Here's the Christmas gift inspo you need.
Simone Manuel, a Tokyo bronze medalist, vented on social media about interviews.
"This broke my focus and that problem impacted my time," said Hungary's Kristof Milak.
The swimmer, part of the Refugee Olympic Team, swam for three hours to pull a migrant boat to safety.
Ariarne Titmus wins the 400-meter, and coach Dean Boxall wins the Internet meme game.
Six athletes returned to Poland before the games even began and demanded the Polish Swimming Federation board's resignation.