I know of a couple of amazing people who I cross paths with at the gym.
One 40ish year old man. I've run across him a couple of time a weeks for years without knowing his story. Not a huge guy, but really good upperbody. Lower body hard to tell because he always wears long light-weight flowing pants that had elastic at the hem. Well I've watched him come into the gym about 4 days a week for years, and we often exchanged small talk. He works a circuit style of training, with heavy presses, killer ab workouts, chin ups, all types of rows, and even lighter weight leg presses. I know he is a rower and spends a lot of time on the river, and I often see him riding a bicycle around the neighborhood. So, I was totally suprised one day when we were discussing an upcoming run, when he said he didn't do running. He then took his knuckles and knocked on both legs right above the knee....they are prosthetic legs.
Yesterday I ran into a young woman (early 30's) who I used to train with last year quite a bit. She was a former marathon runner who had taken up weight training with a vengence. I had run into her in January, and she said she hadn't been feeling well due to some anemia. I was very happy to see her back working out, but a bit dismayed to see how poorly she looked. She confided to me that she had been fighting cancer, and had just finished both chemo and radiation the end of May. I found it amazing that she is back at it, trying to build back her strength already. She did confide that if there are any silver linings, the fact that she was in very good physical shape when diagnosed may have saved her life, and certainly made getting through chemo and radiation easier.
Didn't mean this as a downer, but an inspiration....when I start to complain when I don't get a good enough case of DOMS, I'm going to think instead about the persistence of these two people.