This week in science brings significant developments. Drugs like Ozempic may offer unexpected benefits beyond weight loss, potentially reversing cartilage damage in osteoarthritis through cellular metabolism reprogramming.

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Heart health research emphasizes food quality over strict low-carb or low-fat diets. Meanwhile, a 48-hour oatmeal-only diet has shown promise in significantly reducing 'bad' cholesterol for weeks.

A novel 'universal' vaccine candidate, delivered via nasal spray, has demonstrated protection against a wide spectrum of pathogens, including viruses, bacteria, and allergies in mice.

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Repurposing existing drugs is also yielding results, with Viagra identified as a promising candidate for Alzheimer's treatment. Furthermore, 'superagers' - individuals who maintain cognitive sharpness into old age - exhibit increased growth of new brain cells, offering clues to healthy brain aging and dementia prevention.