We wanted hard (ahem) numbers, so we turned to Alyssa Dweck, M.D., co-author of V is for Vagina, to get the stats on how sex can literally turn up the heat.
So, why does making love make us warm? "Sex increases your heart rate and thus increases blood flow to the skin, thus providing a feeling of total body warmth similar to exercise," Dr. Dweck says. "Hormones released during arousal and sex do cause flushing of the skin due to increased blood flow to the skin, face, neck, genital organs, etc. which give a feeling of warmth. So if you feel 'hot and bothered' before and during sex, it's not in your imagination!"
Now how about those calories? Here's the doc's breakdown:
"You don't have to have intercourse to burn calories: Kissing burns approximately two to six calories per minute — and higher if petting is involved!"
"Intercourse for 30 minutes burns approximately 85 calories or more depending on position, duration and intensity. For example, when you're on top doing most of the work, you will burn more calories. The more intense the sex, the more calories burned."
"Oral sex burns calories especially if you incorporate yoga (e.g. planks or push-ups) [Editor's note: Now that's multitasking!], but keep in mind, there are approximately seven calories in one teaspoon of ejaculate. Giving a hand job can burn up to 100 calories an hour depending on vigor and position."
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