Daniel G. Amen, M.D. on Instagram: "What is a negative thought you have that holds you back? This process has changed the lives of myself and my patients. It's called killing the automatic negative thoughts, I learned from Byron Katie years ago and have been helping my patients ever since. Automatic negative thoughts (ANTs) make you feel mad, sad, worried, nervous, lonely, or out of control. Examples of ANTs include thoughts like: “My wife just gave me a look. I don’t think she loves me anymore.