We have all heard the challenge to stay fit over 50, but what about fit over 65?
These days, some athletes prove it is definitely possible to stay in the game, even into your 90's.
For these super-charged seniors, age is no obstacle. Jim Boyette started barefoot waterskiing 36 years ago.
"I'm one of only two people that have competed in every national tournament since 1978," Jim explained.
The thrill of accomplishment, the camaraderie of his team, and the feel of the water have kept him behind a boat, even in the face of injuries and aging muscles.
"I enjoy feeling a feeling of freedom."
And so does 68-year-old Beth Gerber, "It doesn't matter how old you are. Just keep doing stuff," she says.
On her bike and on the court, Beth feels 30 years younger than her age, and just as competitive as she has always been.
"You tend to get a little slower, but the people you play with tend to get younger, so it keeps you going," she explains.
Biking four hours at a time and playing in a tennis league are only two ways Beth stays active. A week after having his second pacemaker surgically implanted, record-holding athlete Henry Cleaveland was back in the water.
New guidelines suggest the elderly should engage in moderate aerobic exercise 30 minutes a day, five days a week; eight to 10 strength training exercises two to three times a week; and stretching for about 10 minutes daily.
"You don't have to quit just because your body doesn't do what it used to do," explained record-holding athlete Henry Cleaveland. A week after his second pacemaker was surgically implanted he was back in the water. And he will not be quitting anytime soon.
"My next goal is to age up at 95, and I've got a few records that I'm going to work on then," Cleaveland says.
For older adults, the international council on active aging recommends standing on one foot to increase balance, and if you want to take up a new sport, go for it.
But doctors say to start slowly, swimming and walking are great first activities to try.