You can age and be healthy at the same time.
...not really. Health inevitably declines with age. A healthy lifestyle can
delay the inevitable, but entropy always wins in the end. Exercise all you want, eat only a perfect diet, cut out everything bad for your health, and you'll
still eventually require medical care as your body starts to wear out.
A healthy lifestyle
reduces risk factors, but it does not eliminate them. A person who exercises properly and regularly and eats right will be less likely to get sick or injured, but I recall a certain Tour de France winner who still got cancer.
I once knew a girl who, as a child, was scratched by a neighbor's car. She got an infection, which led to a fever, which was high and prolonged enough to cause minor brain damage. While she was fortunate enough to retain her full cognitive ability, she suffered from epilepsy, with constant grand mal seizures until she received proper medication. Even with medication, she would still suffer multiple petite and grand mal seizures every month. She exercised. She tried multiple diets as directed by her doctors, ranging from full-on Atkins (before it was called Atkins, high-protein zero-carb) to vegetarian. Her epilepsy persisted. A healthy lifestyle did nothing for her.
I know personally several people with a range of illnesses today, ranging from general anxiety disorders to bipolar disorder to HIV and one with a terminal neuro-muscular disorder whose name I cannot recall. Healthy lifestyles did nothing to prevent these illnesses. One was a genetic disorder from birth (he's been confined to a wheeelchair since childhood and can barely eat on his own today, and it's doubtful he'll live past 30 as his entire muscular system continues to atrophy and he eventually stops breathing).
My late grandfather had cancer, twice, despite living a very healthy lifestyle.
My other grandfather always got plenty of exercise - so much so that now he has artificial knees and hips.
I could keep going. A healthy lifestyle only reduces health risk, it does not eliminate it. Universal healthcare is mandatory, regardless of the diet and exercise of the population.
The human understanding when it has once adopted an opinion (either as being the received opinion or as being agreeable to itself) draws all things else to support and agree with it.
- Francis Bacon
"There are two novels that can change a bookish fourteen-year old's life: The Lord of the Rings and Atlas Shrugged. One is a childish fantasy that often engenders a lifelong obsession with its unbelievable heroes, leading to an emotionally stunted, socially crippled adulthood, unable to deal with the real world. The other, of course, involves orcs." - John Rogers