The Red Cross has a new way to test your hemoglobin levels that is prick-free. For the past four months, donation locations have tested iron levels using a noninvasive device called the Ora Sense.

Researchers have developed a first-of-its-kind device to profile the immune function of newborns. Using a single drop of ...

Scientists create a floss pick that samples cortisol within saliva as a marker of stress and quantifies it with a built-in electrode. The system uses a polymer casting technology that can be adapted ...

If you've ever sat waiting at the doctor's office to give a blood sample, you might have wished there was a way to find the same information without needles. But for all the medical breakthroughs of ...

A lot of people don't like getting their blood drawn, but it is often the only way to obtain medical answers. But scientists ...