Simplify the following text for a Grade 11 native English-speaking person.
Original: By the Greco-Roman era , many of them were healers , and were said to have many other special powers , including dream interpretation and the ability to control the weather , which they did by braiding or not combing their hair .
Simplified: By the Graeco-Roman era , many of them were healers , and were said to have many other powers , including explaining dreams and the power to control the weather by braiding or combing their hair .