How do mood rings change color?

Mood rings change color in response to changes in body temperature. The ring contains a thermochromic liquid crystal, which is a substance that changes color with temperature. When the ring is cold, the liquid crystal molecules are tightly packed together and reflect blue light. As the ring gets warmer, the molecules move apart and reflect different colors of light, such as green, yellow, and orange.

The body temperature is influenced by a number of factors, including emotions. For example, when a person is feeling stressed or anxious, their body temperature may rise. Conversely, when a person is feeling relaxed or calm, their body temperature may drop. As a result, a mood ring can change color based on a person's emotional state.

It is important to note that mood rings are not always accurate indicators of a person's mood. They can be affected by other factors, such as the temperature of the environment or the ring's proximity to other heat sources. However, mood rings can be a fun and interesting way to learn more about your body and how it responds to different emotions.