Wearable device reveals how seals prepare for diving

A wearable non-invasive device based on near-infrared spectroscopy (NIRS) can be used to investigate blood volume and oxygenation patterns in freely diving marine mammals, according to a study publishing June 18 in the open-access ...

Posture impacts how you perceive your food

Summertime is often filled with outdoor parties and food trucks, meaning you're spending more time standing up and eating. But if you want to actually enjoy your meal, researchers say you're better off finding a seat.

Combating fatigue with a smartwatch application

Scientists from EPFL, UNIL and local startup be.care have developed a system that uses heart rate variability to detect fatigue and identify what kind it is. The system then uses the results to suggest lifestyle changes that ...

Fit to drive? The car will judge

When you're sleepy, stressed or have had a few drinks, you're not in the best position to drive – or even make that decision. But automated cars could soon make that call for you.

New study shows animals may get used to drones

A new study in Conservation Physiology shows that over time, bears get used to drones. Previous work indicated that animals behave fearfully or show a stress response near drone flights. Using heart monitors to gauge stress, ...

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Heart rate

The pulse rates can also be measured at any point on the body where an artery's pulsation is transmitted to the surface - often as it is compressed against an underlying structure like bone - by pressuring it with the index and middle finger. The thumb should not be used for measuring another person's heart rate, as its strong pulse may interfere with discriminating the site of pulsation Some commonly palpated sites include:

A more precise method of determining pulse involves the use of an electrocardiograph, or ECG (also abbreviated EKG). Continuous electrocardiograph monitoring of the heart is routinely done in many clinical settings, especially in critical care medicine. Commercial heart rate monitors are also available, consisting of a chest strap with electrodes. The signal is transmitted to a wrist receiver for display. Heart rate monitors allow accurate measurements to be taken continuously and can be used during exercise when manual measurement would be difficult or impossible (such as when the hands are being used).

This text uses material from Wikipedia, licensed under CC BY-SA