. ♪ >> cardiologist gary fraser has investigated the seventh day adventists' longevity in a longtermthat it's pushed ahead as compared to other californians in men about seven years, in women about 4.5, which is a big deal. that is the kind of gains that a whole population might make in a generation or two generations. >> christine ho hits the pool to swims laps every morning. a former nurse, she's believes that exercise keeps her young and healthy. she likes to crawl a few lengths then switch to backstroke. [chatter] >> i like backstroke because you can, you know, breathe better. and when i do backstroke, i see the sky, sometimes the skyclouds have different animal or formations, you know, i enjoy looking at that. >> her husband james ho plays badminton regularly, always against a younger opponent. not all the residents of loma linda are elderly. it's a multi-generational place. james ho used to coach the son of his badminton partner, who's 30 years younger than him. >> it makes me active. it makes me go more for it instead of relaxing. the young people they move so, it makes me als