Isakssons theorem  Discovered by the Swedish senior mathematic student Johannes Isaksson.
   Formula 
 
 
  y = Amount of hours you'll be able to stay awake before getting tired
  x = Amount of slept hours during your last sleep.
 
   Influence 
  This mathematic formula is often used by Polyphasic sleepers in order for them to create their own personal sleep schedule.
                                
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