What are goose bumps, pins and needles, and side stitches? The truth behind 3 of your body’s physical quirks – and easy moves that leave you feeling your best. Let’s call them out and see if we agree:
1. What causes Goose Bumps?
Goose bumps (scientific name: piloerection) pop up when you’re cold or afraid. A tiny muscle at the base of each body hair contracts; together, they appear as naked bumps on the flesh. They made sense eons ago, when humans still had a natural “fur coat.” Back then, fluffing your ruff would warm the body by trapping an insulating layer of air between the hairs. And standing your hair on end was intimidating to predators or enemies (picture a cat facing off with a dog). Evolution has since stripped humans of their pelts. Now goose bumps are, of course, no medical issue. If you’re uncomfortable showing off your vestigial physiognomy, dress warmly, place yourself in calm environments, and avoid horror flicks.
2. Why Does Chopping Onions Make you cry?
When you cut into an onion, you rupture its cells, releasing enzymes that produce a gas called propanethial sulfoxide. Once that gas reaches your eyes, it reacts with tears to produce a mild sulfuric acid. And that hurts. The brain then signals the eyes’ tear glands to produce more liquid to flush the stuff out. The more you chop, the more irritating gas you produce and the more tears you shed. “: The onion’s chemical reaction is a defense mechanism that evolved to repel pests,” explains University of Wisconsin-Madison horticultural professor Irwin Goldman, Ph.D. Keep the stinging and crying to minimum by chilling an onion in the freezer before cutting it; cold temperatures slow release of the enzymes. The highest concentration of enzymes is at the bottom of the onion, so cut it last to postpone the weeping (and the irritation) for as long as possible.
3. When you find something really funn7y, why do you sometimes “laugh until you cry”?
Experts don’t really know. One thing to consider: Laughing and crying are similar psychological reactions. “Both occur during states of high emotional arousal, involve lingering effects, and don’t cleanly turn on and off,” says Robert R. Provine, Ph.D., a psychologist at the University of Maryland, Baltimore County, and author of Laughter A Scientific investigation. We associate crying with sadness, but tearing up is an even more complex human up is an even more complex human response. Tears are triggered by a variety of emotions-“by pain, sadness, and in some cases even more complex human response. Tears are triggered by a variety of emotions- “by pain, sadness, and in some cases even extreme mirth. It’s just the way we’ve evolved,” says Lee Duffner, MD, a professor of ophthalmology at the University of Miami’s Bascom Palmer Eye Institute. As if turns out, that’s good, because both laughter and crying can ease4 a stressful experience, probably by counteracting the effects of cortisol and adrenaline. So if you ever find yourself laughing until you cry, count yourself lucky.
Can you explain the Odd Body? We’d love to hear your comments. We look forward to hearing from you. So until then keep Bloggin us in.
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