Deprecated: Hook custom_css_loaded is deprecated since version jetpack-13.5! Use WordPress Custom CSS instead. Jetpack no longer supports Custom CSS. Read the documentation to learn how to apply custom styles to your site: in /var/www/wp-includes/functions.php on line 6078
The Brain States

The brain produces four main types of brain wave which are shown by EEG readings.

Each type of brain wave produces the listed effects at specific frequencies. In this series, we’re going to go through each of the four states.