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Can you make yourself smarter? We asked one of the world’s leading intelligence researchers.

We recently spoke with Georgia Tech's Dr. Randall Engle about intelligence and memory, why it declines as we age, and what we can do to help (or hurt) our brainpower.

Georgia State researcher examines how your brain talks to blubber

More than three decades ago, biologist Timothy Bartness studied how Siberian hamsters fattened up during the summer and early fall to prepare for winter food shortages. Curious about the idea of the brain telling the body to plump up, Bartness developed an interest in obesity research. He now directs Georgia State University’s Center for Obesity Reversal and recently received a $2.5 million award from the National Institute of Diabetes and Digestive and Kidney Diseases to study how the body breaks down fat.

Concussions on the brain

If your child plays football or soccer, cheerleading or lacrosse, no doubt you've worried about concussions. A study released last week in the journal Radiology is the first to find that even one concussion can cause changes in the brain with possible long-term consequences.

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