Dr. Vin Gupta on booster shots to fight COVID-19 variants

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UP NEXT
Work up a sweat indoors with this 10-minute workout
03:49
How to keep calm and rested during the stressful holiday rush
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TODAY's Al Roker readmitted to hospital due to complications
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Tripledemic cases fill US pediatric hospital beds to capacity
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Author on how a morning 5-minute pep talk can change everything
04:47
Netflix documentary raises questions about Xanax overuse
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