You've likely heard of a heat index, a pollen index and an air quality index, but what about a frizz index?
Apparently, predicting the probability of a bad hair day is as easy as crunching some numbers, according to AccuWeather.com.
"The weather can have a dramatic effect on how well people's hair looks and holds it style," the Web site says. "The Frizz Index uses a proprietary algorithm especially developed by AccuWeather.com that combines measurements of atmospheric humidity with other weather factors that create hair frizz."
Unfortunately, according to today's frizz index we are in a "frizz emergency." That means that uncontrollable hair is unavoidable.
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"Sticky weather affects all hair types, so anyone may have a 'bad hair day,'" AccuWeather.com said.