eli5: Why do we always get strong urge to be lazy if its better for the brain to be active

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I mean its so much better for the brain to be active working doing useful things stimulating your brain or working out, we all have a reward system and everytime we finish a task we feel a sense of accomplishment but everytime you should be doing something that you know will feel good in the end you just get this urge of doing nothing today and just relaxing,
shouldnt our brain be chasing this sense of accomplishment? Where does this feeling come from

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26 Answers

Anonymous 0 Comments

Our brain has two system
System 1 and System 2:

System 1 is fast,Intuitive,quick,Emotional
System 2 is deliberate,Logical,slow
Much of our Brain spends some time in system 1
An example of that is: when i ask you 1+1 = 2
Your “system 1” already knows it
When i ask you 57 x 54
You will deliberately look for answers in your brain
So when you spends sometime in “system 2”
Your brain consumes willpower or “glucose” in your brain ,to the point of mental exhaustion
So to take this point
What does it feel when you’re brain is overloaded with information
Many equation ideas sprung
Your nose bleeding

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