Science
The latest Science coverage from the Chattanooga Times Free Press, part of our News section.
More in Science, page 26
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Cancer’s new face is younger and female
More Americans are surviving cancer, but the disease is striking young and middle-aged adults and women more frequently, the American Cancer Society reported Thursday.
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FDA floats plan to make cigarettes nonaddictive, but its fate rests with Trump
Federal officials on Wednesday released a far-reaching proposal to make cigarettes far less addictive by capping their nicotine content, a goal long sought by antismoking advocates that is unlikely to go into effect anytime soon.

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Obesity won’t be solely defined by BMI under new plan for diagnosis by global experts
A group of global experts is proposing a new way to define and diagnose obesity, reducing the emphasis on the controversial body mass index and hoping to better identify people who need treatment for the disease caused by excess body fat.

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FDA bans red dye No. 3 from foods
U.S. regulators on Wednesday banned the dye called Red 3 from the nation’s food supply, nearly 35 years after it was barred from cosmetics because of potential cancer risk.

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Alzheimer’s drugs eyed as next big obesity-like opportunity
Investors seeking the next obesity-like market opportunity will be closely watching developments related to treatments for Alzheimer's disease in 2025.

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Jeff Bezos’ space company tries again to launch massive new rocket after last-minute postponement
Blue Origin will try again to launch its massive new rocket as early as Thursday after calling off the debut launch because of ice buildup in critical plumbing.

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US finds no ‘Havana syndrome’ link to foreign powers, but 2 spy agencies say it’s possible
U.S. intelligence has found no evidence linking a foreign power to the mysterious "Havana syndrome" injuries reported by some U.S. diplomats and other government personnel, though two agencies now say it's possible a foreign adversary may have developed or even deployed a weapon responsible for the injuries.

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Earth records hottest year ever in 2024 and the jump was so big it breached a key threshold
Earth recorded its hottest year ever in 2024, with such a big jump that the planet temporarily passed a major climate threshold, several weather monitoring agencies announced Friday.

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New research shows a quarter of freshwater animals are threatened with extinction
Nearly a quarter of animals living in rivers, lakes and other freshwater sources are threatened with extinction, according to new research published Wednesday.

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Biggest Nvidia takeaways from Jensen Huang’s CES 2025 keynote
Nvidia CEO Jensen Huang unveiled a suite of new products, services and partnerships at CES 2025.
