You may not like the ear infections and colds that your tot gets in daycare, but all the exposure they are getting may pay off in the end. A new study found:

Children who attended daycare or playgroups have a 30 percent lower risk of developing the most common form of childhood leukemia compared to those who do not.

To see what else the report said, read more.

The researchers looked at 14 different studies that examined 20,000 children. Of those, about a third of them had acute lymphoblastic leukemia. Researchers believe the earlier exposure to germs can strengthen a tot's immune system — even to leukemia.

While there are unknown factors that cause leukemia, this report may offer a peek into how the disease might be prevented.

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