TODAY

Tens of millions are under heat alerts across the country, with more record highs expected. Also, President Trump says the U.S. will hit Iran "hard" in the wake of a surprise attack on American forces in the region. Plus, a 16-year-old hero lifeguard speaks out. And, a look at NASA's new deep space telescope.

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TODAY’s Checklist tackles how men and women experience stress in different ways and what tactics can be used to better manage intense feelings. Plus, “House of the Dragon” star Fabien Frankel sits down with the 3rd Hour to discuss Ser Criston’s fate, training for epic fight scenes and launching a production company alongside his brother. The Grammy-winning band Mumford & Sons dishes on the release of its sixth studio album, “Prizefighter,” and how tour life is treating them ahead of playing Madison Square Garden.

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Family, friends and world leaders gathered for ceremonies in the nation’s capital to celebrate the life of late Sen. Lindsey Graham — the farewells continue in his home state of South Carolina. TODAY shines a light on new high blood pressure guidelines from the American Heart Association, including a cardiovascular disease risk calculator tool and easy lifestyle changes to improve health outcomes. Tom Holland confirms his marriage to Zendaya after getting grilled by elementary school students on “Celebrity Substitute.” Plus, Macaulay Culkin eyes a return to the holiday silver screen after pitching a “Home Alone” reboot to Disney.

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Millions of Americans remain under severe weather watches, with torrential rain and flooding pummeling the Northeast and intense heat across the South. Plus, Dr. Anthony Fauci will appear before a Senate committee later today to discuss the origins of COVID-19 following the public release of his personal journal. Pope Leo is set to host a Concert for Peace at Borgo Laudato Si’ featuring performances from music icon Andrea Bocelli and an interfaith children’s choir — tune in to NBC News and Telemundo at 1 p.m. ET for full coverage of the event. And Colorado researchers get creative with their fundraising tactics to support their study of the yellow-bellied marmot through an unlikely website.

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We're back with Consumer Confidential to highlight all the things you can get for free in August. Also, Karlie Kloss shares her new children's book "Spaghetti Code" which follows the journey of a young computer programmer. Plus, catching up with actor and soon-to-be director Jason Biggs. And, chef Anna Francese Gass shows us two dishes that celebrate the best of summer's fresh produce.

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