Describir: Perceived fatigue after mental work

  ______    _____    _    _     _____    _    _     _____    _    _   
 /_   _//  |  ___|| | \  / ||  |  ___|| | \  / ||  |  ___|| | || | || 
 `-| |,-   | ||__   |  \/  ||  | ||__   |  \/  ||  | ||__   | || | || 
   | ||    | ||__   | .  . ||  | ||__   | .  . ||  | ||__   | \\_/ || 
   |_||    |_____|| |_|\/|_||  |_____|| |_|\/|_||  |_____||  \____//  
   `-`'    `-----`  `-`  `-`   `-----`  `-`  `-`   `-----`    `---`   
                                                                      
   ___    
  / _ \\  
 | / \ || 
 | \_/ || 
  \___//  
  `---`