NCIt definition : Decreased consciousness characterized by mental and physical inertness.;
Alternative definition : NCI-GLOSS: A condition marked by drowsiness and an unusual lack of energy and mental
alertness. It can be caused by many things, including illness, injury, or drugs.; NICHD: A profound lack of mental and physical energy.; CTCAE: A disorder characterized by a decrease in consciousness and mental and physical
inertness.; ACC/AHA: Experience of decreased consciousness characterized by mental and physical
inertness.;