Deep brain stimulation eased Shari Finsilver's tremors, but didn't stop them entirely. Here she uses both hands to stabilize a glass of water. Marvin Shaouni for NPR hide caption

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Involuntary Shaking Can Be Caused By Essential Tremors

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President Obama has pledged millions of dollars to fuel research into understanding the workings of the human brain. Zephyr/Science Source hide caption

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Federal Brain Science Project Aims To Restore Soldiers' Memory

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Submitting a DNA sample to networking company 23andMe entails spitting a saliva sample into a plastic vial. 23andMe hide caption

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Search For Parkinson's Genes Turns To Online Social Networking

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In a study, patients with Parkinson's disease, a progressive nervous-system disorder, had fewer falls after taking up Tai Chi. iStockphoto hide caption

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Tai Chi May Help Parkinson's Patients Regain Balance

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