Create this Thumbnail: Create a high-contrast, eye-catching YouTube thumbnail that visually represents the duality of bipolar disorder. The left side should depict a person in a dark, depressed state (sad, withdrawn, dull colors like blue and gray), while the right side should show the same person in a manic, energetic state (wide-eyed, excited, warm colors like red and yellow). For extra engagement, include subtle but effective details like:
A lightning bolt or split effect down the middle to symbolize the drastic mood shifts.
A brain icon in the corner to hint at the neurological aspect. Keep the design simple yet bold, avoiding clutter but ensuring clear emotions and contrast.