Full Definition of MACHIAVELLIAN. 1. : of or relating to Machiavelli or Machiavellianism. 2. : suggesting the principles of conduct laid down by Machiavelli; specifically: marked by cunning, duplicity, or bad faith.
Sleep medicine is a subspecialty field in the US under several medical specialties including anesthesiology, internal medicine, family medicine, and neurology. Neurosurgery is a distinct specialty that involves a different training path, and emphasizes the surgical treatment of neurological disorders.
INTRINSIC SLEEP DISORDERS. PSYCHOPHYSIOLOGICAL AND IDIOPATHIC INSOMNIA. Insomnia refers to the perception of insufficient sleep. This can be related to a difficulty initiating sleep, a difficulty staying asleep or the perception that the sleep quality is poor or insufficient.