Michelle Obama's occasionally sleeveless attire reached a fever pitch this month.
Never before has a set of bare arms launched so much discussion than in the weeks since the US First Lady appeared sleeveless at her husband's speech to Congress in chilly February.
Certainly not in equally chilly January 1963, when Jacqueline Kennedy wore one of her many sleeveless outfits to her husband's state of the union address.
Why so much attention to Obama's well-toned biceps and triceps 46 years later? Just about everyone in the world of fashion and politics has a theory on this pressing question for the body politic.
Her arms signify strength: New York Times columnist Maureen Dowd wrote: "Let's face it. The only bracing symbol of American strength right now is the image of Michelle Obama's sculpted biceps.
"She could easily wind up and punch out Rush Limbaugh, Bernie Madoff and all the corporate creeps who ripped off America."
Her arms signify discipline: To others, the arms serve as an example of a woman who has the self-esteem, willpower and diligence to keep herself in shape.
"Here's a woman who's balancing family and other issues like the rest of us, and she's creating the time to be strong," says Mikki Taylor, beauty and cover director for Essence magazine.
"She's setting a great example by signalling that she gets up every day to work out."
Her arms signify youth:
Lesley Jane Seymour, editor of More, a magazine for women over 40 says: "Arms are one of those things you notice when you age - they can look very poor.
"So when you've got it, flaunt it, babe." - Sapa