A neuroscientist said “neurons release brain chemicals, known as neurotransmitters, which generate these electrical signals in neighboring neurons. The electrical signals propagate like a wave to thousands of neurons, which leads to thought formation. One theory explains that thoughts are generated when neurons fire. Our external environment (such as home, relationships, media, etc.) leads to a pattern of neuron firing, which results in a thought process. A continuous pattern of neuronal firing reinforces the circuitry.”
There is a recent study “Frequency of fruit consumption and savoury snacking predict psychological health; selective mediation via cognitive failures” expressing that fruits and vegetables are great for wellbeing and against depression.
There is a recent study “population-level risks of alcohol consumption by amount, geography, age, sex, and year: a systematic analysis for the Global Burden of Disease Study 2020” that said there are risks with alcohol consumption for people under 40.
A recent study, “If you don’t let it in, you don’t have to get it out: thought preemption as a method to control unwanted thoughts” detailed that it is possible to control unwanted thoughts.
It is possible to define some mental illnesses as negative [continuous] neuroplasticity.