Have you ever had a thought that just keeps on coming up even though you wish it would just stop? This is very common with people who have PTSD, depression, anxiety, and more.
Research done at the University of Cambridge has found that one particular neurotransmitter, GABA, may be the key to help avoid these thoughts in the future. Research using FMRI and magnetic resonance spectroscopy have found that the presence of GABA can inhibit the activity of connected memory neurons. It may be that increasing the amount of GABA could help reduce the amount of persistent unwanted thoughts.