Testosterone is a naturally occurring steroid hormone. Despite its status as a steroid, prescription testosterone replacement therapy (TRT) isn’t the same as taking anabolic steroids. TRT is an ...

Is it better to be loved or feared? Matthew Kohut is a co-author of Compelling People: The Hidden Qualities That Make Us Influential (Hudson Street Press, August 2013) and a principal at KNP ...

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. Timothy Li is a consultant, accountant ...

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 ...

Enzymes help with specific functions that are vital to the operation and overall health of the human body. They help speed up chemical reactions and are essential for respiration, digestion, muscle ...

Testosterone levels peak during male puberty and decline with age in both males and females. With low testosterone in males, you can have a decreased sex drive, trouble with erections, and low sperm ...

An inherent principle of publication is that others should be able to replicate and build upon the authors' published claims. A condition of publication in a Nature Portfolio journal is that authors ...