Alarm bells started to ring in March when the heart rate dropped to 50-58. "The cat had 'third-degree AV block'. She had gone very dull and lethargic, and refused to eat," said Dr Fernandez.

Mass General Brigham researchers have applied a new way to measure the complexity of pulse rates, using data collected ... and future cognitive decline. "Heart rate complexity is a hallmark ...

Summary: Healthy hearts show complex, adaptive rhythms that reflect resilience to internal and external changes. Researchers ...

Every second counts when it comes to detecting and treating heart attacks. A new technology may be able to identify heart attacks faster and more accurately than traditional methods.

Also known as complete heart block, third-degree heart block is the most serious type of heart block. Considered a medical emergency, it can be fatal without prompt treatment. The steady beating ...

At 7:02 p.m., her heart rate increased to 102 beats per minute, indicating that she was exercising, Waltimyer testified. Using software, Waltimyer said she was able to extract all of the data from ...

Study: The Impact of Alcohol on Sleep Physiology: A Prospective Observational Study on Nocturnal Resting Heart Rate Using Smartwatch ... this study was unable to measure REM sleep, and therefore ...