It sounds ironic, but a new study finds sweet syrup may be able to lower kids' risk for cavities in their baby teeth. In a new study, researchers gave nearly 100 young children varying doses of the sweetener in syrup form.

They found 24% of the children receiving the highest dose two times a day had tooth decay, compared to over 50% of those who received the lowest dose, once a day.

Experts estimate giving the syrup to children twice a day can prevent up to 70% of decayed teeth.

In other health news, what kids and teens do in their free time could have a major impact on whether they start smoking or not.

A new study finds those who get involved with team sports are less likely to smoke. However, researchers said that good influence was erased by watching a lot of movies that feature characters who smoke.

Those exposed to the most smoking in movies were most likely to become addicted to cigarettes.

Also, a new study shows the risk of blood clots, which have long been linked to air travel, can be linked to any kind of transportation where you're sitting for a long time.

Harvard researchers studied more than 4,000 cases of travel-related blood clots. They compared them to people who didn't travel.

Researchers found the risk for blood clots was nearly three times higher in the traveling group. For each additional two hours spent in a cramped airplane or car the risk went up 18%.

Experts say staying hydrated and moving your legs as much as possible are simple ways to lower your risk.