Anyway, now that the thread's been moved...
The medicine workload is high, with a lot of contact hours and usually quite a bit of set work/private study on top. But the classic phrase here is "work hard, play hard." It is perfectly possible to get involved in sport at a university level, plus quite a lot of medical schools have their own medic teams which are arranged around your demanding timetable. Socialising is also definitely allowed! You won't be able to go out every night, and after one or two hungover ward rounds you won't want to have too many heavy nights out while on clinical placement, but yes, you can go out and have a good time when you want to.
It may require a bit more organisation than a student on a less-demanding course, and you won't be able to do absolutely everything you might want to, but you can still have an amazing time.