As blood banks across the U.S. report dangerously low supplies of O-negative blood (red blood cells), anesthesiologists are calling for increased donation and changes in how hospitals use this ...

Could hyperbaric oxygen treat PTSD, depression, and anxiety? New evidence suggests that this treatment may rewire the brain—and the results are hard to ignore.

Measures of blood vessel health derived from routine blood pressure readings may help identify adults at increased risk for ...

Infant with dangerously low oxygen levels survives after 12-hour ambulance transfer and life-saving cardiac procedure ...

A newly identified brainstem mechanism linking breathing and blood pressure may help explain certain forms of hypertension and point toward new treatment strategies targeting oxygen-sensing cells in ...

Obstructive sleep apnea promotes whole-body inflammation and weakens the body's immune system. Read about related pathways and health consequences.

Research has shown that living at higher altitudes lowers your risk of developing diabetes, but scientists haven't been able to pin down why that is – until now.

Chronic, mild dehydration quietly increases the workload on your cardiovascular system. Even mild dehydration reduces blood ...

A recent mouse study suggests that low-oxygen conditions, such as being at high altitudes, could cause red blood cells to absorb excess blood glucose, potentially helping to protect against diabetes.

Red blood cells may hold the secret to fighting diabetes—by soaking up sugar when oxygen runs low. People who live high in the mountains have long been observed to develop diabetes less often than ...

In iOS 26.4, Apple added an Average Bedtime metric to the Sleep section of the Health app, letting users better monitor how bedtime impacts sleep quality. Under a new Sleep Highlight, Apple lists the ...

In the EXAKT study from the U.K., the home-use pulse oximeters assessed all gave higher oxygen saturation (SpO2) readings for patients with darker skin tones than for patients with lighter skin tones.