This podcast is supported by the Icon School of Medicine at Mount Sinai,

the academic arm of the Mount Sinai health system in New York City,

and one of America's leading research medical schools.

What are scientists and clinicians working on to improve medical care and health for women?

Find out in a special supplement to Science magazine prepared by the Icon School of Medicine

and Mount Sinai in partnership

with science. Visit our website at www.science.org and search for Frontiers of Medical

Research-Wedmen's Health. The Icon School of Medicine at Mount Sinai, we find a way.

Welcome to the Science Podcast for August 18th, 2017.

I'm Sarah Crespi.

In this week's show, Daniel Appa Yi talks with us about a detailed study in brown dwarf atmospheres. And what the bands, beads, and spots observed in brown dwarfs can tell us about

exoplanets.

And David Grimm is here with this week's hits from our online news site.

Now we have David Grimm, editor for our daily news site.

He's here to talk about some recent online stories.

Okay, Dave,

first up, we have a story on a big jump in knee pain. According to new research, the number of people with arthritis in their knees has doubled since 1940. This is something people tend to get

when they're older, right? Yeah, it typically develops after 45 years of age,

and actually right now about 20% of people in the U.S. have knee osteoarthritis.

And what is knee osteoarthritis? Well, it's basically the cartilage in the knee joint

breaks down, and it hurts. It sucks. And so this idea that it's doubled since 1940, how do we know who had osteoarthritis

in 1940?

...