Exercise and stress research has typically focused on aerobic exercise. There have been consistent findings that people report feeling calmer after a 20- to 30-minute bout of aerobic exercise, and the calming effect can last for several hours after exercise. Recently, there has been an increased amount of research on the role of mind-body types of exercise such as yoga or Tai Chi. Unfortunately, there is somewhat limited research on the role of resistance exercise in stress management.

I believe that there is a frequency at which a brain functions, they can vary depending on circadian rhythm or other factors. You can check the various effects on the brain caused by varying frequencies. Check this link -> Binaural beats. When we expose our brain to isochronic/binaural beats, it has a resonating effect on the brain, i.e. the brain starts to alter its frequency in order to synchronise with the tone. Once the specific frequency is achieved, you will have the desired effect (depending on the specific frequency you are trying to induce).
This unique session works the opposite to most sessions. It attempts to to ‘dis-entrain’ the brain, breaking stuck thinking patterns and allowing a fresh way of thinking. The recording contains random and chaotic isochronic tones spanning 7.83 to 18 Hz, played over a background of gamma-embedded noise. Use this session to sit back and allow fresh ideas and new connections to form. Finishes at the illuminating14Hz sensorimotor rhythm frequency.