Down Syndrome

Those born with Down syndrome have an extra copy of a chromosome – chromosome 21 to be exact. As a result, the person develops differently than others, and it limits their cognitive development. While the syndrome is relatively common in the U.S., the exact reason babies are born with an extra chromosome is not known. […]

There's currently no cure for the motor neuron disease that slowly paralyzes a person, but medical science is learning a lot about it and making progress. Here's everything to know about ALS, including the signs, symptoms and treatment options.