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Dr. Tiffany Best

Dr. Tiffany Best is on ABC News. Get Dr. Tiffany Best's latest news stories and articles, connect with millions of users and join the conversation at ABC News.

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PHOTO: A ventilator is pictured during an instruction session with doctors at the Universitaetsklinikum Eppendorf in Hamburg, Germany, March 25, 2020.
Axel Heimken/POOL via Getty Images

Mother to baby transmission of COVID-19 cannot be ruled out, new study finds

PHOTO: An undated stock photo show children studying.
STOCK PHOTO/Getty Images

Homeschooling during COVID-19: Why all kids may not need eight hours of instruction a day at home

PHOTO: A commuter wears a face mask in the New York City transit system, March 9, 2020, in New York.
John Minchillo/AP, FILE

Preventing coronavirus: Are supplements the answer?

PHOTO: A child raises their hand during class in this stock photo.
STOCK PHOTO/Getty Images

Teacher's praise helps students focus more than punishment, study finds

PHOTO: This Nov. 22, 2015 file photo shows Justin Bieber at the American Music Awards in Los Angeles.
Jordan Strauss/Invision/AP, FILE

Justin Bieber reveals he has Lyme disease: What to know about the infectious disease

PHOTO: An Apple Store employee shows the new Series 5 Apple Watch during the preview of the redesigned and reimagined Apple Fifth Avenue store in New York, Sept. 19, 2019.
Brendan McDermid/Reuters, FILE

Apple charges ahead into medical research; introduces Research app

PHOTO: Yoga4Cancer
Yoga4cancer

Yoga to meditation: A look at the complementary methods for breast cancer patients to treat the whole person

PHOTO: Oils containing CBD (Cannabidiol) are seen in a shop in Paris, June 14, 2018.
AFP/Getty Images

Google searches skyrocket for CBD: What to know about the latest wellness trend, and does it work?

PHOTO: A baby sleeps in a crib in an undated stock photo.
STOCK PHOTO/Getty Images

Not all parents are following safe sleep practices for their babies: What to know

PHOTO: An undated stock photo showing a man and a pregnant woman.
STOCK PHOTO/Getty Images

Men’s marijuana use increases miscarriage risk for women, new research finds