Chemical ‘messengers’ called neurotransmitters help regulate our emotions – but scientists have noticed a disruption to their levels in people with chronic pain.
While we know much about the consequences of happiness, much less is known about its causes, let alone how to guarantee its appearance, writes Brock Bastion.
A computer algorithm that can identify complex emotions from facial expressions is a step towards improving the human-machine interface, write Lisa Williams and Eliza Bliss-Moreau.