Human-made devices that use solar energy to excite and move electrons across a one-way electrostatic barrier, thus creating an electrical potential and an electrical current, are called cells.

dopamine..

"it was found that some people who were taking the drug l-dopa to raise their levels of dopamine were developing schizophrenic-like symptoms supporting research a strength of the dopamine hypothesis is that there are many studies which have shown support for the neurochemical explanation."

gravitational energy

electrical energy

kinetic energy

ligh energy