Collagen is the most abundant protein in the human body and has an important role in healthy tissue as well as in a range of prevalent diseases. Medical research and diagnostics hence call for means ...

Troy Segal is an editor and writer. She has 20+ years of experience covering personal finance, wealth management, and business news. Toby Walters is a financial writer, investor, and lifelong learner.

Figure 1: Overexpression of a 48-nt stem-loop structure in TLC1 interferes with telomeric silencing. Figure 2: Overexpression of the TLC1 48-nt stem-loop mimics a ykuΔ mutation. Figure 3: ...

Erectile dysfunction (ED) is the inability to get or keep an erection firm enough to have sexual intercourse. It’s sometimes referred to as “impotence,” but this term is now used less often. ED can ...

Hallie Levine is an award-winning health and medical journalist who frequently contributes to AARP, Consumer Reports, the New York Times, and Health.com. She lives in Fairfield, CT, with her three ...

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 ...

A pulse oximeter measures blood oxygen levels at home and in healthcare settings. Abnormally low readings on a pulse oximeter might require medical care, especially if they are below 92%. Skin color ...