i already touched on weight training but since he hasn't stated his goals yet i didn't go into too much detailBatou667 said:Nobody mentioned weight training yet?
6'2" and 67kg is really quite skinny, so you may benefit from bulking up a bit. Whether you then use your new-found strength to get into sports or other activities, or whether lifting in itself becomes your main focus, is up to you.
You can do an effective weight training workout in 45 minutes, three times a week. The downside is a barbell (the long bar, not the dumbbells that you hold in each hand) is all but vital. Two routes you can take now: either build a home gym and buy weights yourself (expensive, but after the initial outlay you won't need to pay another penny in your life) or get a gym membership (shop around, see if you're eligible for any discounts, and this may well be the more affordable route).
A decent gym session involving compound (whole body) movements will soon knock you into better shape than running until you puke your guts up or making yourself sore with a thousand pushups.
This is the information source I'm currently using: http://stronglifts.com/
I'd recommend you consider it! Lifting big bits of metal over your head has many misconceptions attached to it: it's just for bodybuilders and steroid users, gyms are scary and unfriendly places, weight training is just for big bulky jocks. All untrue! Both genders and all ages can benefit from weight training. It's low-impact (easy on the joints), you'll only be working out three times a week, and it won't aggravate your asthma.
i'm interested in why you would suggest a barbell when dumbbells can do exactly the same exercises and more while also engaging more stabilizing muscles. i definitely wouldn't say there isn't a case for barbells but as far as beginners go i would always advise dumbbells