Warren Buffett’s simple-sounding advice actually contains a profound insight into how our brains work — and how to make them work better.

Many medical conditions can cause irrational anxiety, paranoid behavior, or persistent fear. Alzheimer’s disease. Alzheimer's disease is an irreversible, progressive brain disorder that slowly ...

Smoking weed can certainly have an impact on your brain — and not just the potential for some serious paranoia. Research published last week found that ER visits for cannabis use by people over ...

In fact, in some cases the delusional person’s brain may misinterpret their environment or may even fabricate evidence to support their claims. A variety of health-related causes can lead to paranoia ...