Methylation is the main epeigentic process that is focused in mental illness. This is the addition or removal of a methyl group. This can impact ones DNA and mental health greatly.
It has been determined that mental illness results from environmental factors that cause genes to be expressed improperly.
Examples of are nutrient imbalances, or toxic exposure to nutrients. These may contribute to the alteration and may be the root cause of mental illness.
Certain nutrients have a powerful role in determining which genes are being expressed and which ones are being silenced.
The topic of methylation really focuses on the proper balance between these nutrients. This is essential for healthy mental functioning.
Good Mental health requires a proper level of synaptic activity at neurotransmitters such as serotonin, dopamine, norepinephrine and others.
A good article to read is DNA Methylation.