Wearable health sensors such as photoplethysmography (PPG) wristbands, ECG patches and multi-modal biometric devices are typically developed and calibrated under controlled laboratory conditions.

Your engine needs a constant supply of clean air to run efficiently. The air filter is the guardian that traps dust, pollen, ...

Wrist pulse oximeters can look similar, making it hard to decide which one to buy. This in-depth guide covers everything you need to know to find your best fit.

That’s where pulse oximeters come in. These small devices measure your heart rate and SpO₂. They give you another way to understand how your body responds during exercise and recovery. Also, they may ...

These pet odor eliminators passed the sniff test with flying colors.

July 3, 2026 Scientists at UCLA discovered a surprising reason aging muscles heal more slowly. In older muscle stem cells, a protein called NDRG1 builds up and acts like a brake, slowing the cells’ ...

The toothbrush features a pressure sensor that reduces vibrations if you brush too hard, a two-minute auto-shut-off function, and two intensity settings—low and high. A single charge lasts about two ...