[mholub]

You just need to find activity interesting for you

I used to do sedentary lifestyle most of my life until I found rock climbing 2 years ago

I go rock climbing to a gym 2-3 times a week now. I go there because I WANT not because I have to. This did tremendous job to my health and overall fitness. And this is sustainable in the long term because I don't have problems with motivation.

So my advice — find your sport, any physical activity you are interested in. If it becomes boring, don't hesitate to change it.

You don't need to be a sportsman and become good at something, you just need consistency to move your body , so care about your motivation. Good body will come naturally after some time.

[stinos]

I'm also mad for climbing and yes 2-3 times a weeks does wonders for overall feeling, fitness and strength. It's also a very complete exercise unlike many other sports. But the claim here is doing that at the end of your day still isn't sufficient in dealing with sitting for hours in row. Which I anecdotelly can relate to: I feel way better overall when not spending hours a day sitting. And when I go climbing after a 'standard' working day involving multiple consecutive hours of sitting I'll top at about 4 routes in a certain grade. However when I'm taking a week off to do some light construction works in my house and I go climbing after such a day, when I've been sitting for max 1 hour or so, and even if I already did a considerable amount of physical labour, I'll do 8 routes in that same grade. At first I thought it was a coincidence (like the routes in that grade just being easier or me just accidentally being better for some reason or...) but it happened time and time again in the last couple of years. I'm not 100% sure the not sitting is really the cause, but it is striking.