Nope, I'm not taking steps to make a sector bet on healthcare. It's true that the population is aging, but it's also true that "reigning in healthcare costs" is on a lot of minds these days, and that could spell trouble (for health care stocks, not for the country). Everyone knows the population is aging, everyone knows people need health care, so I'm pretty sure all this is already factored into the prices of those stocks.
The % of GDP we presently spend on health care is among the highest in the world, I don't know if that's a tree that can grow much taller. I think a lot of the future spending will be for LTC: Warehousing seniors and hiring low-skill workers to empty bedpans isn't a formula for a high-tech, high margin business.
"Freedom begins when you tell Mrs. Grundy to go fly a kite." - R. Heinlein