Hydrocephalus is a condition that occurs when fluid builds up in the skull and causes the brain to swell. Brain damage can occur as a result of the fluid buildup. This can lead to developmental, physical, and intellectual impairments. It requires treatment to prevent serious complications.
It is associated with happiness. Violet: This is the color which is associated with romance and love. It can also indicate the arousal of the person who is wearing the ring. Pink: This is the color which is associated with extreme happiness and when you are feeling love and affection towards someone.
They are fun and they do change colors. However, they are simply liquid crystal thermometers that you wear on your finger. So they do indicate a change in your body, but that change is actually the surface temperature of your finger. Mood rings are filled with a liquid crystal just like the aquarium thermometers described above.