L-theanine is a compound that may support thinking, sleep, and relaxation and help with weight loss, blood pressure, and more. Research suggests that L-theanine might provide a range of health ...

Some evidence suggests that L-tryptophan supplements may help to treat conditions such as anxiety and sleep disorders. However, more research into the safety and efficacy of L-tryptophan supplements ...

Your body needs arginine, more commonly known as L-arginine in supplement form, to carry out several important functions. It’s an amino acid that helps build proteins. It’s especially important for ...

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L-citrulline is a substance called a non-essential amino acid. Your kidneys change L-citrulline into another amino acid called L-arginine and a chemical called nitric oxide. These compounds are ...

L-carnitine, a naturally occurring amino acid derivative, plays a vital role in energy production by transporting fatty acids into cells’ mitochondria. While L-carnitine supplementation may aid in ...

I often encourage my patients to drink tea. Black tea is a lower-caffeine alternative to coffee during the day, and decaffeinated tea can be a calming part of a nighttime power-down ritual before bed.

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 ...

In 1995, a young rapper named Jay-Z appeared on The Stretch Armstrong and Bobbito Show, a radio program that served as an essential proving ground for any fledgling New York MC. The gifts that would ...

Julia Kagan is a financial/consumer journalist and former senior editor, personal finance, of Investopedia. Marguerita is a Certified Financial Planner (CFP), Chartered Retirement Planning Counselor ...