Possible Factors - Hair, Skin & Nail Problems
While changes in nail appearance, such as brittle nails, can occur for a variety of reasons, the most likely cause for women of menopausal age is hormone fluctuations due to disruptions of estrogenic levels.
Along with hormonal causes, certain and dietary issues can influence nail growth. Nutrients - such as vitamin C, folic acid, calcium, iron, protein and fat - help to build strong healthy nails. Stress and anxiety can also slow nail growth and lead to weak or brittle nails.
Ways to measure these neurotransmitters