Mitchell Grant is a self-taught investor with over 5 years of experience as a financial trader. He is a financial content strategist and creative content editor. Dr. JeFreda R. Brown is a financial ...

Julia Kagan is a financial/consumer journalist and former senior editor, personal finance, of Investopedia. Amilcar has 10 years of FinTech, blockchain, and crypto startup experience and advises ...

Methamphetamine, or meth, is a stimulant drug that speeds up your body’s central nervous system. It boosts dopamine, which is a brain chemical that plays a part in movement and motivation. Dopamine ...