Walnuts: Nature’s Brain-Shaped Superfood (And Why Your Mind Will Thank You)
🧠 Why Walnuts Are Good for Brain Health (Science-Backed Benefits + Easy Ways to Eat Them) There’s a small moment of wonder when you crack open a walnut. Its shape—wrinkled, divided into two halves—looks strikingly similar to the human brain. For centuries, this resemblance fueled the ancient Doctrine of Signatures, the belief that foods …









