Okay this one is not that sexy, but needs to be said.

Many U.S. schools ban chewing gum because children often dispose of the sticky chaw under chairs or tables.

But a team led by Craig Johnston at Baylor College of Medicine in Houston found that students who chewed gum during math class had higher scores on a standardized math test after 14 weeks and better grades at the end of the term than students in the class who did not chew gum. The study was funded by chewing gum maker Wrigley.

Leveille said Wrigley has gotten feedback from many of its gum customers who say chewing gum helps them stay focussed.

So, four years ago the company started the science institute to see if some of these claims have merit.

The researchers at Baylor studied four math classes or 108 students aged 13 to 16 years old from a Houston, Texas, charter school that serves mostly low-income Hispanic students.

About half got free Wrigley’s sugar-free gum to chew during class, homework and tests. They chewed at least one stick of gum 86 percent of the time they were in math class and 36 percent of the time they were doing homework.

Another Wrigley-funded study found that college students in a lab who were given difficult computer tasks had lower levels of the stress hormone cortisol when they were chewing gum compared to when they were not.

Leveille said he thinks chewing gum helps reduce stress so students can do their best work. And while he is aware that many schools have a dim view of students chewing gum in class, he hopes the findings may change that a bit.