Investopedia contributors come from a range of backgrounds, and over 25 years there have been thousands of expert writers and editors who have contributed. Andy Smith is a Certified Financial Planner ...

Sean Ross is a strategic adviser at 1031x.com, Investopedia contributor, and the founder and manager of Free Lances Ltd. David Kindness is a Certified Public Accountant (CPA) and an expert in the ...

Muscular dystrophy (MD) is a group of genetic disorders that damage muscle fibers and cause progressive weakness. Multiple sclerosis (MS) is an immune-mediated disease that affects the brain, spinal ...