Scientists boosted one protein and aging mice became stronger and healthier

As the U.S. population continues to age, scientists are searching for ways to help people stay healthier later in life. By 2050, nearly one in four Americans will be age 65 or older, and many are expected to live well into their 90s. While modern medicine has dramatically extended lifespan, aging still brings serious physical challenges, including weaker immunity, chronic inflammation, bone loss, fatigue, and declining strength.

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