The source of this information is; Personality Psychology: Foundations and Findings (Canadian Edition) ISBN 978-0-205-89745-2; Chapter 8 The Neuroscience of Personality.
For the last 10 years or so, since my retirement, I have become an active user of meditation. Aside from doing it during the day sitting inside I meditate when I go for my morning walk and when I go to bed at night, where I meditate until I fall asleep. So it is very interesting to explore the information in the textbook named above.
"What if we told you there was a way that you could be healthier and happier? It's not a drug, it doesn't involve massive psychotherapy, it's not painful, and its totally free. What is the miracle cure?
Believe it or not it's meditation."
"In one study, participants who wanted to learn meditation as a from of stress reduction. The meditation group went through an eight week training, compared to the control group. The training group. During the training the ones who received meditation training practiced staying in the here and now instead of planning, worrying, thinking of, or fantasizing about the future, what most of us do when given a few moments to sit still. The meditation group members tuned in to their breathing and practiced regulating their attention to not thinking about these things--to think about nothing in fact."
"Overall, the data suggests that regular meditation fundamentally fundamentally changes how our brains work and this activation is related to both the emotions we feel and how we respond to stressful events. The researchers surmised that meditation makes people more open to experiencing positive emotions and less reactive to negative emotions with the overall effect of decreasing their anxiety and improving immune functioning."
And this is just a small part of a very interesting book