Why are my fingernails blue?

Blue fingernails are commonly caused by cyanosis, which happens when there’s a lack of oxygen in the blood. Blood lacking in oxygen has a bluish tint.

Optum Perks Author

By Optum Perks Author

World Diabetes Day 2020

Marked every November 14th since 2007, WDD was originally envisioned and championed by the International Diabetes Foundation (IDF)

Optum Perks Author

By Optum Perks Author

Cold vs. flu vs. COVID-19

Cold vs. flu vs. coronavirus: A 2020 dilemma

Spotting the difference between early cold symptoms and early flu symptoms can be tricky.

Optum Perks Author

By Optum Perks Author