A high pulse with low blood pressure (BP) can happen after standing up or due to a medical condition—like congestive heart failure. Low blood pressure—also called hypotension—may not be a ...

Circular is a relatively small player in the smart ring segment, which is currently led by the likes of Oura, Samsung, and ...

PPG sensors measure these changes in blood volume and pulse pressure (the difference between systolic and diastolic pressure) ...

Circular's upcoming smart ring, the Circular Ring 2, could outdo Oura and Samsung with two ambitious health features.

Blood donation is widely recognised as a life-saving act, replenishing hospital supplies and aiding patients. But could donating blood also benefit the donor? Frequent blood donors may experience ...

The draft guidance addresses criticisms that pulse oximeters are less accurate for people with dark skin tones. Experts ...