The number of Americans who will be 65 or older will double over the next four decades. And we’re not alone. Much of the developed world is getting even older. (Procter & Gamble’s 1985 acquisition of Metamucil is looking more and more prescient.)

+ “You’d think that as modern-day scientists, they’d be more objective, more dispassionate about their subject — possibly even a little cold-blooded — but really they are just like everyone else: they want to delay death.” The researchers racing to figure out ways to make us live even longer.

+ We know you’ve fallen and can’t get up: Researchers want to keep the elderly safe with radar that tracks everything from location to heart rate.