There is a difference in what is "normal" and what is "optimum". What is your "normal" blood pressure? What is your "normal" A1C reading? Normal is usually what we experience most of the time, not necessarily what is the best condition for our body. For some people pain is normal but not best. Hot flashes are common and normal for most PM women, but not healthy. Wide variances of hormone levels affect much more of our bodies than just our perceived temperature levels. That's why most doctors prefer to balance the PM hormones with prescriptions. It's for a woman's overall better health.