That is if you have a peanut allergy. Kissing someone who’s been nibbling on peanuts just might knock you offyour feet alright— and land you in the emergency room.

WHEN RESEARCHERS at Mt. Sinai Medical Center in New York fed study participants peanut butter sandwiches then measured the amount of peanut allergen in their saliva, they found the allergens can linger in saliva for 4 hours or longer, says researcher Jennifer Maloney, MD. And brushing, rinsing, and even chewing gum won’t clear them out. “The only thing that does is a tincture of time,” she cautions. “Our study showed that the saliva cleared several hours after the peanut butter sandwich and following a peanut-free meal.” Other food allergens may behave in the same way, although researchers don’t know for sure, says Dr. Maloney. She’d suggest that those with any food allergy make sure the people they kiss haven’t eaten something they’re allergic to within several hours. Some food allergens are known to cause the airway to swell until it obstructs breathing, in some cases causing death.

The number of public figures and celebrities who are crazy for peanut butter, including former president Bill Clinton, Jack Nicholson, Madonna, Julia Roberts, Bill Cosby, Michael J. Fox, and Billy Joel.

Source: peanutbutter.com

Percentage decrease in your risk of dying from heart disease if you take a 30-minute midday nap three times a week.

Source: Archives of Internal Medicine