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 ...

Folate and folic acid are two forms of vitamin B9: folate occurs naturally in foods, while folic acid is synthetic and used in supplements and fortified foods. Vitamin B9 supports cell growth and DNA ...

Having high levels of testosterone does not necessarily cause hair loss. But there may be a connection between your genes and baldness. Complex weave The relationship between testosterone and hair ...

Investopedia contributors come from a range of backgrounds, and over 25 years there have been thousands of expert writers and editors who have contributed. Thomas J. Brock is a CFA and CPA with more ...

The Tower of Hercules has served as a lighthouse and landmark at the entrance of La Coruña harbour in north-western Spain since the late 1st century A.D. when the Romans built the Farum Brigantium.