On Disabilities

Though medical marijuana is legal in most states, some patients still have a hard time affording it. The federal government won't allow states to cover medical marijuana with Medicaid dollars.

More than 200,000 Americans live with early-onset Alzheimer's, with dementia-like symptoms developing in their 40s and 50s. The disease can put an unexpected strain on relationships and finances.

If you sit too much during middle age — at work and at home — your ability to exercise or even walk in late decades is at risk, research hints. And, of course, your risk of heart disease climbs, too.

Bit by bit, dystonia was stealing Carl Luepker's ability to use his hands and talk. But his biggest fear was that his children would inherit the disorder. Then he saw his son Liam's foot twitch.

The federal funding of the program lapsed in September. States have been burning through leftover funds, or borrowing from other accounts, as they wait for Congress to act before the end of January.

Light therapy can help treat depression that's part of seasonal affective disorder, but it hasn't worked so well for treating bipolar disorder. It may come down to when people are exposed to light.

In many countries, uneven and unpaved roads make it hard to get around in a standard wheelchair. MIT engineer Amos Winter describes his design for a lever-powered all-terrain wheelchair under $200.

When designer Mileha Soneji's uncle got Parkinson's, his quality of life deteriorated rapidly. Mileha couldn't cure her uncle's disease, so she designed simple ways to improve his everyday life.