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.
Some prominent factors include excess estrogen, resistance to insulin present in the body, chronic stress, sugar-laden diet, insufficient exercise and certain medications. Symptoms of low progesterone may include: 1  Infertility. 2  Thyroid dysfunction or disorders. 3  Depression. 4  Fibrocystic breasts. 5  Weight gain. 6  Gallbladder disease.