The blue nail theory has gained popularity on TikTok, suggesting that women wearing blue nail polish are in a committed ...

The "blue nail theory." If you're curious about this, you're not the only one; it was one of the top 10 trending searches on ...

In the world of psychology and color theory, blue is often linked to feelings of calm, relaxation, and stability,' says Dr.

But more often than not, those assumptions are just smoke and mirrors. This tendency has roots in the “blue dot” theory—a concept explored by Mark Manson, author of The Subtle Art of Not ...

As it turns out, the blue nail theory isn't too dissimilar from the viral "red nail theory." It has to do with your nail polish color and what it signifies. To learn more about this phenomenon ...