Periodic limb movement disorder (PLMD) is repetitive cramping or jerking of the legs during sleep. It is the only movement disorder that occurs only during sleep, and it is sometimes called periodic ...

A new AMERICAN EXPERIENCE collection, currently featuring a selection of our award-winning films from Stanley Nelson (Firelight), documenting pivotal moments in the 20th century civil rights movement— ...

For over four decades, Bernice Johnson Reagon has been a major cultural voice for freedom and justice. An African American woman's voice, a child of Southwest Georgia, a voice raised in song, born in ...

Gait impairments such as freezing, weakness and imbalance remain resistant to standard therapies across neurological disorders. This Review examines advances in neuromodulation, from refining deep ...

A force is a push or a pull that acts on an object due to the interaction with another object. Force is measured in newtons (N). Forces are divided into contact forces and non-contact forces. A force ...

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