My mom is 80 years old and she is always hot, she is uncomfortable wearing anything but loose fitting light cotton. It can be cold outside and she is still warm and is very sensitive to the heat and high Temp. We live in a temperate climate in Southern CA. She has has tests for her thyroid -> normal, and been to MD. Never had any female surguries and is way past memopause, but it is like she is stuck in hot flashes, any ideas for her to explore to become more comfortable?