[redisman]

I have an infant and going to the gym or a run is about as free as it gets these days. It's a hobby so I don't understand how is that not "free time".

[kungtotte]

So you think the only non-free time you have is when you're working, and possibly commuting? Nobody is paying you to sleep, so it should count as free time too, right?

It's pretty clear what the tool means by "free time". It's time not otherwise spent on activities that are either required or recommended for a healthy life.

[TeMPOraL]

Not everyone considers physical activity interesting, or anything but a means to an end - healthy body and healthy mind. For me, any form of exercise is definitely work.