Multiple sclerosis is an autoimmune disease in which immune cells attack and destroy the protective myelin sheaths that surround nerve fibres, leading to neurological disturbances. In this Review, the ...

Carol M. Kopp edits features on a wide range of subjects for Investopedia, including investing, personal finance, retirement planning, taxes, business management, and career development. Erika Rasure ...

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 ...

Demyelination is damage to myelin, the fatty coating that protects nerves and speeds signals. When myelin breaks down, nerve messages slow and axons can deteriorate. Symptoms depend on where myelin is ...

For each card, stay on top of its benefits, give it a purpose and keep it on you only if you need it 'in the wild.' Many or all of the products on this page are from partners who compensate us when ...

Blood cancers affect blood cells and bone marrow — the spongy tissue inside your bones where blood cells are made. These cancers change the way blood cells behave and how well they work. You have ...