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Dr. Ashley Yoo

Dr. Ashley Yoo

Dr. Ashley Yoo

Dr. Yoo's Latest Work

Emmanuel Kelly attends the Gold Carpet during the FIFA Club World Cup 2025 Final match between Chelsea FC and Paris Saint-Germain on July 13, 2025 in East Rutherford, New Jersey.
Arturo Holmes - Fifa/FIFA via Getty Images

From Iraqi battlefield to World Cup stage: Emmanuel Kelly prepares to make halftime history

PHOTO: Defense Secretary Pete Hegseth makes an announcement in this screen grab taken from a handout video from an unknown location, released on July 15, 2026.
Secretary Of Defense Pete Hegseth/X via via Reuters

What to know about testosterone after Defense Secretary Pete Hegseth directs screening for troops over 30

Brandy Norwood, Rita Ora arrives at the Los Angeles Premiere Of Disney Channel Original Movie "Descendants: Wicked Wonderland" on July 14, 2026 in Los Angeles, California.
Steve Granitz/FilmMagic

Brandy, Rita Ora reunite for new 'Descendants' movie, tease duet

PHOTO: The Lower Manhattan skyline is pictured as wildfire smoke from Canada causes hazy conditions, in New York, on July 15, 2026.
Angela Weiss/AFP via Getty Images

How to protect yourself from poor air quality as wildfires burn in Canada

Katie Couric poses as Mariska Hargitay makes her Broadway debut in "Every Brilliant Thing" on June 2, 2026 in New York City.
Bruce Glikas/WireImage

Katie Couric reveals transient global amnesia diagnosis: What to know

PHOTO: Emergency room entrance in an undated stock photo.
STOCK PHOTO/Adobe

Nearly half of ovarian cancer cases are diagnosed in ER, missing critical treatment window, study finds

PHOTO: The sun rises behind the Manhattan skyline during high temperatures in Jersey City, N.J, July 2, 2026.
Michael Nagle/Bloomberg via Getty Images

Amid heat wave, doctors warn of health risks for people taking GLP-1 drugs

PHOTO: Stock image of people walking through an office.
Connect Images/STOCK PHOTO/Getty Images

Hourly movement breaks can help counter effects of prolonged sitting, study finds

PHOTO: GLP-1 self-injectable devices in Mumbai, March 17, 2026.
Indranil Mukherjee/AFP via Getty Images

Doctor breaks down study showing GLP-1s may lower breast cancer risk

PHOTO: Barry Manilow speaks with ABC News' Chris Connelly in an interview that aired on "Good Morning America" on June 1, 2026.

Barry Manilow opens up about losing his voice following lung cancer, surgery