Cardiology

Regenerating the cells that keep the heart beating

Specialized cells that conduct electricity to keep the heart beating have a previously unrecognized ability to regenerate in the days after birth, a new study in mice by UT Southwestern researchers suggests. The finding, ...

Psychology & Psychiatry

'Smiling eyes' may not signify true happiness after all

A smile that lifts the cheeks and crinkles the eyes is thought by many to be truly genuine. But new research at Carnegie Mellon University casts doubt on whether this joyful facial expression necessarily tells others how ...

Medical research

How the brain paralyzes you while you sleep

We laugh when we see Homer Simpson falling asleep while driving, while in church, and even while operating the Springfield nuclear reactor. In reality though, narcolepsy, cataplexy and rapid eye movement (REM) sleep behavior ...

Neuroscience

Q&A: Dissecting movement disorders through the eyes of a fly

Every time we move, electrical impulses are channeled along neuronal highways, jumping from nerve cell to nerve cell until they reach a muscle, causing it to contract. Because muscle movement depends on neuronal function, ...

Genetics

Expert heart advice for rare genetic muscle disorder

A rare, inherited muscle disorder that occurs in about 1 in 8,000 people, myotonic dystrophy also can affect the heart and other organs. A new set of expert recommendations offers guidance for managing the progressive condition.

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