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25 Fascinating Things Your Body Says About Your Personality & Health

By on July 14, 2017     Views: 607
Redheads need more anesthesia during surgery

1. Redheads need more anesthesia during surgery.

A growing body of research shows that people with red hair need larger doses of anesthesia and often are resistant to local pain blockers like Novocaine. Researchers believe redheads are more sensitive to pain because of a mutation in the gene that is responsible for causing red-colored hair— the melanocortin 1 receptor (MC1R) protein. 

The MC1R gene belongs to a family of receptors that include pain receptors in the brain, and as a result, a mutation in the gene appears to influence the body’s sensitivity to pain. A 2004 study showed that redheads require, on average, about 20 percent more general anesthesia than people with dark hair or blond coloring. And in 2005, researchers found that redheads are more resistant to the effects of local anesthesia, such as the numbing drugs used by dentists.

Mosquitoes are much more likely to bite people with the blood type O than those with other blood types.

2. Mosquitoes are much more likely to bite people with the blood type O than those with other blood types.

Research has found that people with blood type O are 83 percent more likely to get bitten by mosquitoes as those with other blood types. as those with other types. Type A is the least likely and Type B folks kind of sit in the middle of the two. But it’s not all bad news for O’s: Other research shows you’re less likely to suffer from the deadliest forms of malaria—a disease transmitted by mosquitoes—possibly because deadly malarial proteins don’t stick to type O blood cells the way they do to other types.

The location of your belly button can help you decide what sport you should do.

3. The location of your belly button can help you decide what sport you should do.

New research shows that one of the most important factors as to which sports one will excel in is correlated with one’s bellybutton. Specifically, where your bellybutton–and thus center of gravity–is located on your torso may determine your inherent ability to run and swim. Those with higher a navel position tend to be better runners (because they usually have longer legs relative to their height), while people with a lower navel position are good swimmers (due to a longer torso).

Your sense of smell can predict your lifespan.

4. Your sense of smell can predict your lifespan.

Compared to people who aced a smell test, those who struggled to identify some common odors like oranges or peppermint were 20% more likely to die within five years. The University of Chicago study team says losing your ability to identify odors may be a very early warning sign of impending health trouble. How? Your sense of smell—like many of your body’s life-sustaining systems—depends on proper cell health and regeneration. Losing that sense may signal cellular issues, which would explain the links to a shorter lifespan.

Increased blinking may indicate attraction.

5. Increased blinking may indicate attraction.

Increased blink rate, in some cases, has been found to be a strong indication of attraction towards another person. For some people, blink rate spikes when they’re emotionally excited, so consistent blinking (more than the average 10 blinks per minute) may be another sign a person’s attracted to you.

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Timothy Chandler

About Timothy Chandler

Timothy Chandler is a frequent contributor to Smart Life Now. A Michigan native, Chandler grew up on his parents’ farm outside of Detroit. In college, he majored in computer science and went on to work as a consultant in New York’s Financial District. In his free time, when he’s not writing or cycling, he loves heading down to the racetrack with his car club.

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