As a part of our ethical breeding program, we include Early Neurological Stimulation (ENS) exercises, which are conducted once daily from the 3rd to the 16th days, a period believed to be a time of rapid neurological growth and development. Even though puppies are very immature during this time frame, they are sensitive and respond to ENS.
The US Military developed this method designed to improve the performance of future military working dogs, according to the Breeding Better Dogs program developed by Dr. Carmen Battaglia, esteemed breeder, judge, seminar presenter, and AKC board member.

Listed in order of preference, the handler starts with one pup and stimulates it using each of the five exercises. The handler completes the series from beginning to end before starting with the next pup. The handling of each pup once per day involves the following exercises:
1. Tactical Stimulation 2. Head Held Erect3. Head Pointed Down4. Supine Position5. Thermal Stimulation
6. (Bonus) Scent Stimulation

When performed correctly, ENS is believed to impact the neurological system by kicking it into action earlier than would be normally expected, the result being an increased capacity that later will help to make the difference in its performance, according to Breeding Better Dogs.

Five benefits have been observed in canines that were exposed to ENS, including improved cardio vascular performance; stronger heart beats; stronger adrenal glands; more tolerance to stress; and greater resistance to disease.

In tests of learning, ENS stimulated pups were more active and exploratory than their non- stimulated littermates, according to Breeding Better Dogs.
From experience, we can attest that puppies who received ENS learn potty training faster than those who do not (though, this is not scientifically proven)!