Theta Theta is defined by some as 3-7 or 3-8 Hz and others as 4-8 Hz. Many more experienced trainers tend to prefer staying away from the Greek letter denominations and just talk about frequencies themselves. 3Hz activity is kind of a crossover point between delta and theta. It is a frequency which you generally will want to reduce. It is a very internal state, sometimes even a dissociative place, where contact with the environment is pretty minimal. It is […]