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4 Your Health: Pumping up with a curse and analyzing concussions - KVOA | KVOA.com | Tucson, Arizona

4 Your Health: Pumping up with a curse and analyzing concussions with spit.

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Tucson- A simple spit test could help predict whether a child's concussion symptoms will subside quickly or linger for weeks.

The test measures genetic material in saliva, called micro RNA's that are released by brain cells after a head injury.

researchers found this method was 90 percent accurate in identifying kids whose symptoms lasted longer than a month. that's much better than typical concussion tests which are wrong nearly 70 percent of the time.

Cursing makes you stronger

According to British researchers, who studied the effects of swearing during exercise, swearing out makes you stronger.

They found when people swore out loud, before riding a stationary bike, they produced more power than when they did not swear. They also had a stronger handgrip after shouting expletives.

Experts are not sure why profanity affects power and strength. So far, there is no word on a new profanity work-out showing up in gyms.

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