Blood gets its color from hemoglobin, the protein in your red blood cells that carries oxygen throughout your body. When hemoglobin binds with oxygen, it turns bright red.

Vaping has an immediate effect on how well the user’s blood vessels work, ... Vaping immediately affects vascular health and oxygen levels, study shows, even without nicotine ...

A recent study from the University of North Carolina and Washington University experimentally confirms that skin pigmentation ...

WASHINGTON — Makers of medical devices that quickly measure oxygen levels in the blood would have to gather extra data to show that their products work for patients of color, under a new federal ...

Vaping immediately affects vascular health and oxygen levels, study shows, even without nicotine. By ... artery and measured the amount of oxygen in the blood returning to the heart after it ...