Atrial Fibrillation (AFib) is one of the most common forms of irregular heart rhythm disorders (arrhythmias). It originates in the atria, the upper chambers of the heart, and causes the heart to beat ...

Chorea is an involuntary movement disorder that causes irregular muscle movements. It occurs due to the overactivity of dopamine in the brain, which can have many causes. Treatment and outlook both ...

Circadian rhythm sleep-wake disorders are a group of conditions in which the timing of an individual’s sleep is disrupted. Circadian rhythms are often referred to as the body’s internal clock or our ...

Chorea and hemiballismus are both forms of involuntary movement disorders. Hemiballismus can cause sudden, violent, and flinging motions. Chorea can cause irregular, spontaneous, and nonrepetitive ...

Rhythm is a central component of music. Rhythm refers to the absolute timing of individual notes or sounds. The ability to perceive and produce rhythm enables people to make music. Research has shown ...

Atrial fibrillation is one of the most common heart rhythm disorders in the world. It affects millions of people and becomes more common as people grow older. In this condition, the upper chambers of ...