About getting some exercise: I can really recommend it; start ASAP I found out it works best when you’re going with someone else, so you both keep the other motivated (“hm, I don’t want to go today, but I won’t let him/her down, so I’ll go anyway” - and then you like the workout anyway). It’s great to be a bit fit again; no big muscle building for me, just not being out of breath after mounting the stairs of a four-story building Besides, it really helps against all those long-computer-day-inflicted pains also.