Digity wrote:I signed up for a gym today and plan to do cardio and weightlifting just so I can maintain my general health. Although, I wonder if after a while I'll want to start lifting seriously again and whether that's a good thing.
Take care of your body, it's a wise thing to do! I used to listen to dhammatalks via mp3player while in the gym, that may be something worth trying when you get bored of training again. Also, if you find cardio in the gym boring, try jogging to and back from the gym to your home if the distance is fine for you.
If you're worried about getting obsessed with looks, how about recollecting the purpose of training (for health, for well-being, not for boosting the ego) just before starting with training every time? That would be similar to how the monks and nuns recollect the purpose of eating just before taking their meal.
Apart from that, you can also see your exercise as a chance to be a good example for others. Many people don't take care of their body and engage in self-dislike but if you exercise, you may be able to encourage others to change their habits, too.