Pulse oximeters use light to measure how much oxygen is in a person’s blood. For most people, a normal pulse oximeter reading is between 95% and 100%, researchers said in background notes. Readings ...

Fingertip monitors known as pulse oximeters that can be used at home to detect low blood oxygen levels (hypoxaemia) give ...

Heart diseases are rising due to unhealthy lifestyles, stress, poor diet, inactivity, and smoking. Adopting healthy habits ...

Fingertip monitors known as pulse oximeters that can be used at home to detect low blood oxygen levels (hypoxemia) give ...

Reduced blood flow to the brain is thought to be a key factor in many forms of dementia, including Alzheimer's, and ...

These underground rodents are the first mammals found to actively choose air with lower-than-normal oxygen levels. Their ...

Have you ever felt "off" and gotten bloodwork done, only to find out your results were all within the "normal" range? That ...

The image above is from a 63-year-old woman whose targeted-ultrasound demonstrated an irregular mass detected by a screening ...

Scientists have discovered that a part of the brain may be behind high blood pressure.

Neural tissue normally dies quickly without oxygen. Yet bird retinas—among the most energy-demanding tissues in the animal ...

"What is good for the heart is good for the brain," one researcher says.