Some produce a PRR as low as 0.5, or as high as 15,000 Hz. It is then adjusted back down to a comfortable level below that which produces vertigo or an unpleasant feeling of electrical current. It may take a few minutes before the current needs to be reduced. Generally, a treatment time of 20 to 40 minutes is best, daily or very other day. Immediately after a CES treatment, patients usually report feeling more relaxed.
Some people feel somewhat inebriated for the first few minutes.
This is a pleasant and very comfortable sensation. After several minutes to hours, the light-headed feelings usually disappear, the relaxed state remains and a profound sense of alertness is achieved. Most patients relate feeling more relaxed, less distressed, while their minds remain alert and even more focused on mental tasks. They generally sleep better and report improved concentration along with heightened states of general well-being. This device for research purposes only.