Blinking Blinking is very interesting. We used to use it as an indicator of progress in speeding up the brain. When a client was holding down theta relative to beta, blinking frequency dropped way down. This was very reliable. People who have a fair amount of slow activity OFTEN blink a LOT! Don’t know why that is, but it’s a commonly–if anecdotally–recognized finding. And as you speed up brain frequencies, commonly blinking becomes less of an issue.