YDT 2019-1 Soru=76

(I) Humans need social interaction, so depriving them of
social contact, like when prisoners are sent to solitary
confinement, is recognised by psychologists as a form
of torture. (II) On the other hand, too much social
interaction can be tiring; engaging with someone is a lot
of work for the brain. (III) This explains the apparent
contradiction between humans needing social
interaction, but also needing privacy. (IV) The social
brain hypothesis, first put forward in the 90s, suggests
that our sociable nature is why we have such developed
brains. (V) Social interaction wears our brain out, so we
need privacy to get away for a bit and recharge.