Done with RC PYQs 2022.
From tomorrow there will be 27 Ques of 2021.

Why rest needed ?

Scientifically, our brain functions in oscillations. So there will be Ups-Downs of energy, enthusiasm and curiosity. Different individual have different time dimensions for this oscillations of energy. We generally get exhausted when we continuously do work without taking any rest. At that time brain could not analyse when to work efficiently and when to rejuvenate lost energy. We usually have very low efficiency, when we work with lowest energy or enthusiasm. At that time brain do not want to work without energy but we pushes for more work and results into unproductive outcome.
So, best thing to do is, work when we have highest level of energy, highest level of enthusiasm to obtain best possible result. And take rest when we exhausts our energy, just to rejuvenate it once again.
Rest is not for stopping the cycle, but for taking a pause, collecting an energy and rejuvenating an inner spirit.
Always work on your dopamine effect and adrenaline rush.
Best work done at highest energy level.

International Relations (Prelims):

Sources:
PT365
IAS Parliament Document
Byjus Prelims2024 Playlist

Places In News:
Document 1

Still, some google search require