What%E2%80%99s%20happening%20in%20our%20brains%20during%20all%20of%20this%20is%20pretty%20fascinating.%20Dr.%20Hafeez%20explains%20that%20seeing%20something%20cute%20activates%20the%20reward%20and%20emotion%20centers%20of%20the%20brain%2C%20specifically%20the%20ventral%20striatum%20and%20the%20nucleus%20accumbens.%20%20This%20triggers%20a%20release%20of%20dopamine%2C%20which%20is%20the%20neurotransmitter%20behind%20those%20warm%2C%20fuzzy%20feelings%20we%20get%20when%20we%20stumble%20across%20a%20particularly%20good%20photo%20of%20a%20puppy.