1. At 34, I'm mor physically fit than I've ever been. I have muscles in my arms, yo! I also lost ten pounds (okay, I was already pretty thin, but that's still pretty nice), and my flexibility and strength are constantly improving. I eat better because I'm concerned about how my diet affects my karate.
2. I was on drugs for severe anxiety and mild Tourettes for two years before starting karate. All the exercise (I take 5-7 hour-long classes every week and try to practice 45 mins - 1 hour every day) plus the mental/meditative aspects have made me so much calmer that I was able to discontinue the anxiety meds this past December. It's been eight months, and I haven't had a panic attack -- and that's saying a lot.
Also, the Tourette's meds were messing with the motor control in my hands, which made it hard to manipulate sai (as well as screwing up my handwriting). So I talked to my doc, and just a couple of weeks ago I tapered off that med. So far, so good. I believe the karate is heping to control the Tourette's symptoms.
3. Our dojo kun (5 rules for living the karate way) inspired me to start volunteering at a local no-kill cat shelter. I've been there for about 10 months now.
4. I used to be deathly afraid of public speaking. I even tried joining Toastmasters (a public speaking club) for several months, but no cigar. Having to perform in front of others in karate (and sometimes having to teach others) has taught me how to control my fear and get over my shyness in front of groups. I've been doing book signings and talks at local bookstores recently, and they've been going great! (Granted, my co-author is there with me, but still...).
So...do you think karate has dome anything for me? Nah... ;->