Today’s Solutions: January 12, 2025

If you want to feel younger, there’s no substitute for healthy living and hitting the gym (though a flattering haircut and a fun night out can’t hurt). But what if you want to think younger? Our brains are remarkably resilient, even growing new brain cells deep into adulthood, but even this incredible organ eventually ages. People experience this as memory lapses or slowed insights, but scientists can actually see the physical changes in older brains…

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