Loss of testosterone can also account for thinner hair.

Both men and women have this hormone, but at different levels. As we age, the amounts drop. Apparently men have far less than they are supposed to because of food contaminants, and a generation ago had much higher levels later into life.

I expect women have both factors also working against us. Aging and food contamination.

When I can afford my testosterone replacement therapy, my hair thickens up, my body is stronger, hands can open jars easily, and feel reasonably strong. Without it I am a shadow of what I used to be.

Getting hormone replacement is not as hard as it used to be; just need a knowledgeable doctor.