Category: M
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Metatarsalgia
Pain in the forefoot in the region of the heads of the metatarsals. Pain in the heads of the metatarsal bones. A pain in the metatarsal region of the foot. The metatarsal bones are the five long cylindrical bones that make up the central skeleton of the foot. They are located between the tarsal bones…
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Maximum oxygen consumption
The highest level of oxygen an individual can consume and utilize per minute. The maximum amount of oxygen that the body can bum during strenuous exercise.
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Maximum heart rate
Theoretical maximum rate at which your heart can beat at your age. 220 minus your age is a formula used to calculate the maximum heart rate in a healthy individual; do not exercise at this rate. The highest number of times the heart can beat per minute, calculated as 220 minus age heart rate. The…
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Munchhausen syndrome (pathomimicry)
A rare, difficult to treat disorder. Sufferers habitually attempt to hospitalize themselves with self-defined or self-induced pathology, yearning for a surgical remedy. No definitive etiology has been established. In DSM-III-R, this syndrome is diagnosed as chronic factitious disorder with physical symptoms. Patients with this disorder demonstrate factitious medical or psychiatric symptoms with awareness that they…
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Multiple personality
A term used by Morton Prince for a rare type of dissociative reaction in which the person adopts two or more personalities. In DSM-III-R, classified as a dissociative disorder. A rare neurosis, characterized by the person developing more than one distinct personality. The personalities are usually in traits. These are representative of competing motives of…
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Molecular psychiatry
A science that deals specifically with brain chemicals that are released in minute quantities by one neuron to mediate its communication with other neurons.
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Mitchell, S. Weir (1830-1914)
American neurologist who described causalgia and developed a once popular “rest cure” for emotional disorders.
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Mid-life crisis
The set of problems that arise when individuals discover visible signs that they are aging and become preoccupied with the realization. A period in early middle age when some people experience feelings of anxiety, insecurity and self-doubt. A colloquial description of the feelings of anxiety and distress experienced by some individuals in early middle age. They…
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MHPG (3-methoxy-4-hydroxphenylglycol)
A major metabolite of brain norepinephrine excreted in urine.
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Metrazol shock treatment
A rarely used treatment in which a convulsive seizure is produced by intravenous injection of Metrazol (known as Cardiazol in Europe). Introduced by von Meduna in 1934.