Unstoppable
![It started in the 1920s, in a little brook under a bridge in Providence, R.I. That's where a young Rita Simonton (nee Gadbois), with a new pair of inflatable water wings from her mother, learned how to swim, going back and forth.](https://ca-times.brightspotcdn.com/dims4/default/99002a6/2147483647/strip/true/crop/500x320+0+0/resize/500x320!/quality/75/?url=https%3A%2F%2Fcalifornia-times-brightspot.s3.amazonaws.com%2Fb6%2F06%2F8425b1e8da01087566e31f991700%2Fla-he-unstop-1-jdp2s9nc.jpg)
It started in the 1920s, in a little brook under a bridge in Providence, R.I. That’s where a young Rita Simonton (nee Gadbois), with a new pair of inflatable water wings from her mother, learned how to swim, going back and forth. (Karen Tapia-Andersen / LAT)
![Unstoppable](https://ca-times.brightspotcdn.com/dims4/default/add6a76/2147483647/strip/true/crop/257x425+0+0/resize/257x425!/quality/75/?url=https%3A%2F%2Fcalifornia-times-brightspot.s3.amazonaws.com%2F10%2F11%2F76060c045b1c29e19d1d1c7d5b6d%2Fla-he-unstop-2-jds2benc.jpg)
Simonton says she was a mediocre swimmer in high school, but she rose to be a world champion in her 80s. (Karen Tapia-Andersen / LAT)
![Unstoppable](https://ca-times.brightspotcdn.com/dims4/default/411fc34/2147483647/strip/true/crop/500x333+0+0/resize/500x333!/quality/75/?url=https%3A%2F%2Fcalifornia-times-brightspot.s3.amazonaws.com%2F4f%2Ffb%2Face450e3014c37d3ba9977b76d35%2Fla-he-unstop-3-jebbhmnc.jpg)
In 1975, at age 53, Palos Verdes explosives manufacturer Bill Bell heard the 14 words that changed his life: “I want you to jog 40 minutes a day for three days a week.” (Irfan Khan / LAT)
![Unstoppable](https://ca-times.brightspotcdn.com/dims4/default/6a1ad63/2147483647/strip/true/crop/500x339+0+0/resize/500x339!/quality/75/?url=https%3A%2F%2Fcalifornia-times-brightspot.s3.amazonaws.com%2Fd8%2Fb0%2F5a93b3683dddca388dea52d7caec%2Fla-he-unstop-4-jebbl7nc.jpg)
Bell has completed 32 Ironman races, which include a 2.4-mile swim, a 112-mile bike ride and a marathon. My advice to anyone is simple, says Bell. Keep moving. (Irfan Khan / LAT)
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![Unstoppable](https://ca-times.brightspotcdn.com/dims4/default/87e12db/2147483647/strip/true/crop/500x333+0+0/resize/500x333!/quality/75/?url=https%3A%2F%2Fcalifornia-times-brightspot.s3.amazonaws.com%2F27%2F84%2Fa7db88e982eead7c9a01b817b4ac%2Fla-he-unstop-5-jei1atnc.jpg)
Russell Allen, 94, rode in the 1932 Los Angeles Olympics as a 19-year-old, and was a top professional rider until World War II. (Genaro Molina / LAT)
![Unstoppable](https://ca-times.brightspotcdn.com/dims4/default/7d26a27/2147483647/strip/true/crop/500x416+0+0/resize/500x416!/quality/75/?url=https%3A%2F%2Fcalifornia-times-brightspot.s3.amazonaws.com%2F63%2F12%2Fd0431d1737fd4d77582743bf8ecd%2Fla-he-unstop-6-jei19tnc.jpg)
Allen now prefers to ride at the beach in Santa Monica. He also works out at home and goes bungee jumping once a year with his daughter. (Genaro Molina / LAT)
![Unstoppable](https://ca-times.brightspotcdn.com/dims4/default/8d0f5e3/2147483647/strip/true/crop/500x374+0+0/resize/500x374!/quality/75/?url=https%3A%2F%2Fcalifornia-times-brightspot.s3.amazonaws.com%2F17%2F45%2Fe18196506e6a22aab83d5d7a6d5d%2Fla-he-unstop-7-jen8e5nc.jpg)
Margaret Davis credits her fast times, lifelong health and svelte form 10 pounds lighter than she was in her 20s to a sensible training plan, a good diet and good genes (Spencer Weiner / LAT)
![Unstoppable](https://ca-times.brightspotcdn.com/dims4/default/d88bbb6/2147483647/strip/true/crop/500x340+0+0/resize/500x340!/quality/75/?url=https%3A%2F%2Fcalifornia-times-brightspot.s3.amazonaws.com%2Fe9%2F3f%2Fad55b5900f68a4348b2c970837f0%2Fla-he-unstop-8-jen8e6nc.jpg)
Davis, left, and her daughter Colleen Heublein, right, at the start of the 2007 L.A. Marathon. Davis finished first in her age group. (Spencer Weiner / LAT)