I have used the device for about 4 yrs. Anxiety and depression run in my family. I have a number of cousins with bipolar issues. I was using Prozac for a few months and didn’t like the side effects. I found the Fisher Wallace website, read the information and felt like there was no downside to trying it. It has saved my life, I use it every morning on level 4. My anxiety is gone, and I have very little insomnia. I mention the device at least once a week to people I meet that mention they have depression or insomnia.