Paleopathology (palaeopathology, traditional British spelling) is the study of ancient health and disease. The field is interdisciplinary, stretching from art history to paleontology and from parasitology to genomics.
Less common symptoms of low estrogen levels include: 1  Thinning hair. 2  Weight gain. 3  Arthritis. 4  Difficulty concentrating.
Normally, the walls of the vagina stay lubricated with a thin layer of clear fluid. The hormone estrogen helps maintain that fluid and keeps the lining of the vagina healthy, thick, and elastic. During menopause, the drop in estrogen levels reduces the amount of moisture available. It also makes the vagina thinner and less elastic. This is called vaginal atrophy.