Health

E-cigs may damage the heart, study says

Vaping devices and the chemicals they deliver—increasingly popular among teens—may damage the cardiovascular system, a study said Thursday, adding to a growing chorus of concern over injury and deaths related to e-cigarettes.

Diseases, Conditions, Syndromes

What's a pulse oximeter? Should I buy one to monitor COVID at home?

Having a low level of oxygen in the blood is an early sign of worsening COVID. But not everyone gets obvious symptoms. For instance, some people can have low oxygen levels without getting short of breath or feeling otherwise ...

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