Old person with grey hair.
by Papillon335 June 12, 2020
The condition of being slow witted or mentally fatigued, often brought about by sleep deprivation, partying, overworking or over studying, excessive use of television, video games or computer time; cognitive atrophy. It will feel like there is a cloud where your brain should be making it hard to think, concentrate, solve problems, or keep up with conversations.
by withinthecube December 27, 2012