There should be no danger in doing NF in the situation you describe. It is common by people who is noa faste, that after a few days they feel they have clearer head and thoughts, - and feel that fasting makesthem feel good after some initial hunger.. NF - based on learning - one would suppose is best done with a brain that is not fighting hunger, so I would eplain to the client that , I would guess he would have better effect from the training , if he is not hungry - the brain get "enough and the right " fuel.. THen one could discuss what is the right "brain fuel" - for NF. Geir Flatabø Subject: [esnr] NFB and fasting I have a new 17 yr old male client who is a Muslim and will be observing Ramadan (no food or drink is taken during daylight hours for a month). I am concerned about the demands of NFB on a hungry and dehydrated brain - his appointment is 8 hours at least from last intake of any food/water. Does anyone have any advice on this subject? Many thanks Melissa