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.
Black: If the mood ring is depicting black color, it is an indication of negative emotions in the person who is wearing it. Black stands for fear or depression or stress or anger. Yellow: Yellow is the color which states pleasant but not overly happy emotion. It can also state a cautious or anxious behavior in the person wearing that ring or the person is anticipating something.
The ever-changing colors of a mood ring represent the wearer's mood at any given moment. For instance, blue represents a feeling of calm, and black represents severe stress and tension.