AI bots like Replika offer users close experiences that resemble social relationships, friendship or love. But is that real? We tested the Replika model for a week to see what works and what doesn't.

Bitcoin's latest boom has minted new millionaires and revived old prophecies of digital gold, but it has also inspired a very different kind of bet. While traders cheer fresh highs, a German coder is ...

Sign up for the best picks from our travel, fashion and lifestyle writers. The beauty industry has long harnessed biotechnology — namely taking the most powerful ...

The beauty industry has long harnessed biotechnology — namely taking the most powerful skincare ingredients in nature and recreating them using science to make them more potent, stable, ...

Joan says: 'Age is a state of mind. When you feel good about yourself, you look good. But this comes from within. I'm pretty lucky in that I am generally a happy person.' Professor Stephen Palmer, ...