small impulse of electricity, about 150 little pulses per second, and that allows the brain to start to create different types of memories, increases what we believe is glue cose production glucose production, very important for memory retrieval because without those sugars, it s difficult for the mind to create memories. heather: it is such a devastating disease, it affects 27 million, i believe we said, across the world. and it s devastating to the families as well. what results are they seeing? i know that in canada they ve done this for six patients, as you mentioned. what results have they seen? so far they are seeing improvement in actual memory, the ability for alzheimer patients to perform recall exercises. you know, the early stages of dementia and alzheimer s are sometimes very subtle and very difficult for people to understand. but it can be something as simple as, you know, feeling a slight memory loss, not being able to retrieve names,