By JAIMIE DING Nichole Sims started using a tanning bed at 15 because she said everyone around her was doing it, especially ...

An Android phone you’ve used every day for a year or more has been slowly but surely accumulating things it no longer needs.

How readily a cell divides and how well it survives are fundamental to life, shaping everything from organ size to the body's ability to withstand disease. That combination, known as cell fitness, isn ...

ZDNET's recommendations are based on many hours of testing, research, and comparison shopping. We gather data from the best ...

Heuristics simplify decision-making by using mental shortcuts. Understand their pros, cons, and examples in finance and ...