Around the world, many children do not run as far or as fast as their parents did when they were kids, according to a large study presented at a scientific meeting in the US recently.

The study concludes that today’s kids are about 15% less aerobically fit than their parents were at their age.

And in the US, kids’ cardiovascular endurance has fallen by around 6% per decade between 1970 and 2000.

The researchers warn that such a decline in fitness may mean worse health in adulthood.

via Children less fit than their parents – Medical News Today.