While some posts assert that this animation represents an action that takes place in the brain, the creator says that it — and the larger video it is part of — actually “takes the viewer through many of the inner workings of a leukocyte (or white blood cell) showing many of the cellular structures and organelles along the way.” While kinesins can and do play a role in transporting numerous important chemicals within neurons, that is not a process that would be happening in a white blood cell. Because this picture shows an artist’s visualization of a kinesin protein in a white blood cell and not a myosin protein in a neuron, and it is not an actual video but a representation, we rate the claim that this picture is a visual representation of “happiness” as false.