Muscle Isn't Vanity. Gabrielle Lyon Says It's Preventive Medicine

Lyon's 2023 book Forever Strong: A New, Science-Based Strategy for Aging Well argues that muscle is "the organ of longevity"—not a vanity project but a metabolic powerhouse. When you contract it, she says, muscle secretes peptide hormones called myokines that communicate with the brain, liver, and pancreas. "It creates a whole-body cross talk," she says. "It's amazing." Through her Institute for Muscle-Centric Medicine—a Long Island clinic plus a telemedicine practice that she founded in 2018—Lyon treats patients with protocols built entirely around muscle. But her reach extends far beyond her practice. She wrote two bestselling books, appears frequently on media platforms, founded National Muscle Health Month, hosts The Dr. Gabrielle Lyon Show podcast, has more than 1 million followers on Instagram, and continues to publish peer-reviewed research. "I'm not an influencer," she says. "I'm a practicing physician." But by elevating muscle health from a fitness goal to a cornerstone of healthy aging, Lyon has helped reshape the longevity conversation. Lyon’s prescription: do resistance training at least twice a week, and eat enough protein. You’ll need more as you age, she says, and pr...