OligoScan is popular with influencers and makes some pretty big claims. But here's what you should know.

Your smartphone is full of surprises. There's an app if you want to use your phone as a magnifying glass or scanner. Tap or click here for hidden apps on your smartphone and how to find them.

Web-based QR code scanners are another handy option for scanning codes with a laptop camera. Just visit a website that offers this service, grant access to your webcam, and point it toward the QR ...

Your smartphone is full of surprises. There’s an app if you want to use your phone as a magnifying glass or scanner. Tap or click here for hidden apps on your smartphone and how to find them.

With Quick Response (QR) codes, sharing and getting information has never been so quick and easy. There are tons of generator apps and tools out there that you can use to create a QR code for ...

What is a QR code? A QR code (short for Quick Response code) is a two-dimensional barcode that can be read by your smartphone camera. QR codes provide quick access to product information, promotions ...

Malware — and other forms of digital virus — is often an irritation at best, and can be devastating at worst. Whether it's through security exploits, data breaches, or plain old social engineering, ...

A heart PET scan is a noninvasive imaging test that uses a small amount of radiation. It helps doctors understand how the heart functions and whether it is healthy. Cardiac or heart PET scans create ...