What is anillo de humor colores?

Anillo de humor colores, also known as a mood ring, is a piece of jewelry that changes color in response to the wearer's body temperature and emotional state. The ring is made of a thermochromic liquid crystal that reacts to temperature changes, causing the colors to shift in response to the wearer's mood. The common colors and their associated emotions are:

• Black: stressed, tense, or unhappy
• Brown: restless, agitated, or mixed emotions
• Amber: nervous, anxious, or uncertain
• Green: calm, relaxed, or peaceful
• Blue: happy, loving, or romantically inclined
• Purple: excited, passionate, or adventurous

Different manufacturers may use slightly different color charts, but the basic concept is the same. Mood rings were popularized in the 1970s and have been a popular fashion accessory ever since. Some people believe that the colors of a mood ring can provide insight into the wearer's emotional state, but others view them as just a fun and quirky piece of jewelry.