Increasing evidence suggests that the severe gum disease, periodontitis, may contribute to central nervous system disorders through chronic inflammation. However, its role in multiple sclerosis, a ...

Adam Hayes, Ph.D., CFA, is a financial writer with 15+ years Wall Street experience as a derivatives trader. Besides his extensive derivative trading expertise, Adam is an expert in economics and ...

Investopedia contributors come from a range of backgrounds, and over 25 years there have been thousands of expert writers and editors who have contributed. Gordon Scott has been an active investor and ...