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 ...

Treatment with stimulants is unlikely to cause psychotic symptoms in children with ADHD, according to a new study published ...

However, several factors can play a role in a person being diagnosed with schizophrenia or paranoid schizophrenia. Here are some of the factors: Imbalances in brain chemistry can also lead to ...

Psychosis involves complex brain interactions, from neurotransmitter imbalances to genetic risks. Understanding its biology ...

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 ...

Your nervous system is your body's main communication system. It sends messages from your brain to the rest of your body and helps you respond to changes inside and around you. Your brain ...

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 ...