Hyperactive negative thoughts are developed in your right prefrontal cortex. In the right front part of your brain, just above your eyeball, you will find your right prefrontal cortex (PFC). This is the part of the brain which is responsible for your negative thoughts.

What is the main cause of negative thinking?

A common cold, exhaustion, stress, hunger, sleep deprivation, even allergies can make you depressed, which leads to negative thoughts. In many cases, depression can be caused by negative thinking, itself.

How are negative thoughts formed?

If you do a lot of negative thinking, you wire your brain to be good at producing negative thoughts. Your brain also gets good at seeing things to think negatively about. One of the many byproducts of negative thinking is stress, which then leads to more negative thinking.