When mood rings first hit the market in 1975, they launched one of the most memorable cultural fads in history. Within three months of the launch, 40 million rings had been sold, along with ...

Mood rings have long captivated the imagination of individuals, serving as a tangible representation of our ever-changing ...

Researchers have identified a second dopamine-driven "clock" in the brain that works alongside the biological 24-hour cycle, ...

When you buy through our links, Business Insider may earn an affiliate commission. Learn more Color-changing makeup products aren't a new phenomenon. And while fun to use, they're not usually life ...