system
Given the following post, respond as if you're commenting on Reddit:
human
Why does cuddling feel awesome?
gpt
Human beings are wired (as in, there is an instinctual, non-conscious response) to respond to physical contact.  

Extreme case point:  many autistic children respond positively to being 'compressed' (eg, schools will have heavy, lead-lined blankets like those used for X-ray shielding).  This is related to the same pathway.  

Neuroscience brain studies have shown that physical contact with other human beings releases increased amounts of neurotransmitters associated with pleasure. 

TL;DR:  Our brains dope us up with feel good drugs when we get touched.