"As they get older, the boomers—already a narcissistic bunch—are growing ever-more obsessed with their health and wellness."

Why is lazy writing like this allowed??? I would guess narcissism is a characteristic equally distributed among all age groups - even the authors. It means nothing, therefore it adds nothing to the story it helping to explain the sales of vitamins. Slate needs to hire come editors.

spoken like a narcissistic baby-boomer.

Yeah, like there is none of that in any 30 year old. Or God help us 20 somethings, the most giving, selfless generation ever.

hey, I never said that I or my generation weren't narcissistic.