Update Oct 07: Hello Everyone and thank you for all your responses. I have now been studying karate for about 10 months and have my third belt. My passion for karate has only grown over the past 10 months and I have improved significantly since starting. Generally, I have not been injured in karate, except for a brusied toe that was my fault and some bruised ribs when a fellow student missed the kick shield. I have suffered a couple of accidents around the house that set me back, but I managed to catch up with my fellow students and have not lost significant time. My advice to all the senior beginners, in addition to the excellent advice in this thread is: 1. Stretch and warm up before every class. 2. Be careful in class and at home because the body injures more easily as you age. 3. If you get injured, take the time to heal. Don't rush it and heal completely. 4. Be careful around the house, the house is much more dangerous than a dojo! Since resuming my karate career, I have a few observations: 1. Some of my felllow students are not serious about their training. Maybe my age makes me more serious as I realize I don't have a lot of time left to be healthy. Funny, the young don't appreciate being young and fit. Remember the old saying: "Youth is wasted on the young." 2. Karate is a journey of one. While my ultimate goal would be a black belt, I accept my limitations and focus on the next belt and next tests. If I make it to black belt, then great, but I am going to enjoy and learn everything possible out of all my training and be proud of every belt I achieve. 3. I am honestly surprised at what I can do. I have a lot of trouble with jump kicks, but my spining kicks are better than some of my teenage classmates. Interestingly, my excellent balance and some of my old wrestling experience have not been lost. I was amazed to have remembered a few moves from over 40 years ago. Now at the tender age of 53, I am the most "senior" student in the dojo. Yet in my few sparing matches I have generally kept up with much younger students. Nothing makes an old guy happier than besting a much younger opponent. Be careful, be patient, and enjoy the journey.