Move over smiley face: If there's a modern symbol for happiness, in this molecular age it's the brain chemical serotonin, says the sales blurb on "Made With Molecules," an online jewelry store with a somewhat nerdy bent.
The site sells necklaces in the shape of the serotonin molecule: "a thoughtful gift for someone you wish happiness."
"Serotonin molecules interact with receptors in the brain to induce feelings of happiness, satisfaction and relaxation," the site reminds us. (It's at
.) Not your thing? Why not a set of earrings based on the structure of different brain chemicals? ("Display your favorite neurotransmitters close to your brain!") Or, for him, some boxer shorts covered with testosterone molecules — for that extra confidence boost when out on a date, vying for a promotion or at a job interview.