Doctors have spotted cancer coming back up to a year before normal scans in an "exciting" discovery. The UK team was able to scour the blood for signs of cancer while it was just a tiny cluster of cells invisible to X-ray or CT scans. It should allow doctors to hit the tumour earlier and increase the chances of a cure.
Many of us have at least one message we wish we had never sent. Now, Whatsapp is working on a way to help us retrieve embarrassing texts up to five minutes after we've hit send. The feature recently appeared temporarily in the latest WhatsApp beta release, and is believed to only work on messages that haven't yet been read.