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Why this bandage should be in your first aid kit

DrySee isn’t just a waterproof bandage. If liquid makes its way in, the bandage’s gauze changes colors from white to blue, letting wearers know their wound is wet. CEO Brad Greer tells CNN why this invention could be groundbreaking during a hurricane.

1:24 • Source: CNN
Paging Dr. Gupta 16 videos
01 DrySee .jpg
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Why this bandage should be in your first aid kit
01:24
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Cannabis and perimenopause: Can it help?
05:13
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NEW YORK, NEW YORK - JULY 23: In a photo illustration, prescription drugs are seen next to a pill bottle on July 23, 2024 in New York City. A major issue in the presidential race between both parties is the increase in prescription drug prices, an issue that especially energizes older voters. From 2022 to 2023 the average increase of drug prices in the U.S. was 15.2%, higher than the inflation rate, according to the U.S. Department of Health and Human Services. (Photo illustration by Spencer Platt/Getty Images)
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After a heart attack, is long-term usage of beta-blockers necessary?
02:07
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CHICAGO - JULY 23: Lipitor tablets sit in a tray at a Pharmacy July 23, 2008 in Chicago, Illinois. Pfizer, the world's biggest drug maker and manufacturer of the cholesterol drug Lipitor, said today its second quarter profit rose to $2.78 billion. Lipitor is the world's top-selling drug. (Photo by Scott Olson/Getty Images)
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Cholesterol treatment at 30?
03:20
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Can I fix my frazzled attention span? Here's how my 30-day training worked
04:15
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A person poses with a bottle of Leucovorin in this illustration picture taken in Schwenksville, Pennsylvania, U.S. September 24, 2025. REUTERS/Hannah Beierr
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FDA reverses stance on autism drug
02:53
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This image made with the Iseult Magneton 11.7 T MRI shows a brain during a magnetic resonance imaging (MRI) exam simulation at the Neurospin facilities in the Paris-Saclay Alternative Energies and Atomic Energy Commission (CEA - Commissariat a l'energie atomique et aux energies alternatives) centre in Gif-sur-Yvette, on March 22, 2024. "Iseult", the world's most powerful MRI scanner, has delivered its first images of the human brain and is expected to provide a better understanding of its functioning and of certain neurodegenerative and psychiatric diseases. The technical feat is the result of a French-German partnership which has required more than 20 years of research. (Photo by Alain JOCARD / AFP) / RESTRICTED TO EDITORIAL USE - TO ILLUSTRATE THE EVENT AS SPECIFIED IN THE CAPTION (Photo by ALAIN JOCARD/AFP via Getty Images)
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Scientists discover how 'super agers' stay mentally sharp
03:50
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Parents are buying landlines instead of cell phones for their kids
02:11
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Viral ‘potato beds’ are giving people the 'best sleep ever.' Does science back it up?
01:54
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I spent $150 testing my blood for microplastics. The results shocked me
03:15
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Turf vs. grass: which is safer?
01:18
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How the NFL is leveling the playing field between grass and turf
02:53
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Dr. Sanjay Gupta answers your questions about hormone therapy
05:11
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Everything you need to know about ‘kissing bug’ disease in the US
02:36
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How to lower blood pressure without medication
02:13
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<p>CNN’s Dr. Sanjay Gupta speaks out after discovering scammers are using his likeness in AI deepfake videos and doctored images to sell bogus health cures and fake health products.</p>
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'That's not me': Dr. Gupta denounces use of AI to make fake product ads
01:44
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