Humans have Know about the power of

Humans have Know about the power of color for a long time.

Ancient cultures in china, Egypt, and India used colors to heal sicknesses.

People believed that each color had a healing power.

For example, people used blue to decrease pain.

Even today, some people say that colors can help people feel better.

However, research shows that although colors may change the way a person feels, they cannot heal an illness.