1) Cerebrosis 
• (n.) A hypochondriacal condition verging upon insanity, occurring in those whose brains have been unduly taxed; -- called also brain fag.
Synonym for encephalopathy ... <neurology, pathology> Any degenerative disease of the brain. ... Origin: Gr. Pathos = disease ... (18 Nov 1997) ... 
(ser″ә-brop´ә-the) any disorder of the cerebrum; see also encephalopathy.
Cer`e·brop'a·thy noun [ Cerebrum + Greek ... suffering.] (Medicine) A hypochondriacal condition verging upon insanity, occurring in those whose brains have been unduly taxed; -- called also brain fag . 
Type: Term Pronunciation: ser′ĕ-brop′ă-thē See: cerebropathia
cerebropathy, cerebropathia 1. Any disease of the brain. 2. A hypochondriacal condition, approaching insanity, which sometimes supervenes in persons whose brains have been overtaxed.