RSFC stands for "resting state functional connectivity," which is a measure of how brain activity in different regions of the brain is correlated while the brain is at rest. We discuss how it links to serotonin and suicidality.

Thrive With Leo Coaching: If you want to improve in the areas of health, wealth and/or relationships, go to www.thrivewithleo.com to begin your journey.

If you or anyone you know is considering suicide or self-harm, or is anxious, depressed, upset, or needs to talk, there are people who want to help.

In the US:

Crisis Text Line: Text CRISIS to 741741 for free, confidential crisis counseling

The National Suicide Prevention Lifeline: 1-800-273-8255

The Trevor Project: 1-866-488-7386

Outside the US:

The International Association for Suicide Prevention lists a number of suicide hotlines by country. Click here to find them.