At age 12, Andrew Bastawrous was told by his teachers that he was slow and inattentive. But the results of an eye exam explained why: he had very poor vision. Globally, as many as 2.5 billion people who need glasses don't have them — and are unable to rea...

Duration: 03:24

"The opioid epidemic is the greatest public health crisis of our generation," says clinical psychologist Navdeep Kang. But, he says, a lot of people struggle to get access to care, facing long wait times, when addiction should be treated just like any oth...

Duration: 03:13

When Minda Dentler was a baby she contracted polio, which paralyzed her legs. Adopted by an American family, she grew up watching other kids run and jump. It wasn't until business school that she finally felt the wind through her hair — and now she is an...

Duration: 03:31