eccolo74/iStock/Getty Images. Technically, there is a difference between a pyramid scheme and a MLM, although I'm using the names interchangeably in this article because there is A LOT of overlap between the two. Pyramid schemes, in theory, emphasize recruiting new sellers over actually selling product, but in the end, they do both.
Dystonia is a movement disorder characterized by involuntary muscle contraction leading to abnormal postures and twisting movements. The frequency of this disorder is similar to multiple sclerosis. Several types are known and they are classified according to age of onset, distribution of dystonia, and cause.ovement Disorders Program-Introduction. Movement disorders are neurological diseases characterized by an abnormality of motor control because of diminished voluntary movements or increased involuntary movements.
Periodic limb movement disorder (PLMD), is a condition in which a personâs legs or arms twitch, cramp or move involuntarily and periodically during sleep. Previously, PLMD was referred to as nocturnal myoclonus-rapid, rhythmic contractions of the muscles often seen in seizures.However, PLMD is not myoclonus.ecause the movements disrupt sleep and often lead to daytime sleepiness, PLMD is considered a sleep disorder. Usually, partial flexing of the big toe, knee, ankle and sometimes the hip are affected by these rhythmic episodes. It is often associated with restless leg syndrome, but they are both different.