Are you one of those people who always seems to feel a little down, no matter what's going on in your life? Do you struggle to get out of bed in the morning, or find yourself feeling sluggish and unmotivated throughout the day?

It gamifies a biological necessity. By turning sunlight into a "daily metric" (like steps or water intake), it motivates users to make small behavioral changes that have a massive impact on their mental health and circadian rhythm.