I still lift weights, though not nearly as much as I used to. I feel that it's a good suppliment to my martial arts training.
The difference now is that I stretch a lot after lifting, and I watch what I eat instead of eating everything in sight.
In my younger years I was too concerned with how my body looked, and lifted for size. Now that I'm middle-aged (45) I'm more concerned with extra weight playing hell with my joints.
The funny thing is now that I'm slimmed down with lean muscle, I get more compliments and attention from women than when I was bulked up, and I feel way more energetic.
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Insert profound martial arts quotes or tough guy phrases here.