MS is normally diagnosed in adults over age 20, however in five percent of cases the disease starts in childhood.

A new study finds children with multiple sclerosis scored lower on IQ tests than those without the disease.

They also exhibited difficulty with memory, attention and other thinking skills.

Researchers say the disease appears to strike while the brain is still developing, which they say may cause learning problems.

And in other medical news...
The stress of being a teenager is linked to family and school problems.

Researchers at UCLA had nearly 600 teens keep diaries for two weeks.

They found when teens experienced family stress they had attendance problems and difficulty learning for the next two days.

If a teenager had trouble at school, they were likely to reported problems at home later that day.

Researchers say stress spillover should be addressed to help students at home and school.