www.pnas.org/content/108/7/3017.short
We are encouraged to drink small amounts throughout the day, keeping a water bottle by our side. The trouble is we could be continuously drinking but insufficient amounts throughout the day and the brain can lose its grip on what the sodium situation is. The set points constantly change until we do not even feel thirsty anymore and yet we are. This can then manifest itself in hunger or pain. Worse still, the body interprets this as an emergency situation and in an emergency, energy gets the highest priority. Our cells bail the water out and allow the fat to come in. For every litre of water we lose from out tissues, we exchange it for one kilo of fat! The answer has to be to go back to the old fashioned mantra of drinking only when thirsty like we did when we were kids.
nutritionandsuperfood.co.uk
March 2013
Newsletter February 2013
Nutrition & Superfood
Call Fleur on 07766 883 522 BSc Nut Med, BA Hons, MBANT, NTC Fleur Borrelli Bodies Under Construction Write an e-mail to Fleur The Putney Clinic

Why we don’t need 
to eat before exercise 
Exercise makes
us stress tolerant Drinking before 
we are thirsty might 
be making us fat! Hunger is the body’s way of showing that the brain is in need of energy. With the brain firmly in command, ‘stress hormones’ are produced to prepare the body for ‘fight or flight’. We are then ready to move but then why not just have a quick cereal bar and everything will be okay, for a while anyway? The problem is that energy resources are mobilised to go to the organs that need it most to meet this challenge – the brain, the heart, the muscles but not the digestive system. So the cereal just gets stuck, undigested somewhere only to cause trouble later on. We cannot get any benefit from eating at this point. While we are in action, insulin, 
a hormone released when we eat to bring glucose to the muscles, stops being secreted, the liver rallies by producing glucose from sources in the body. Muscles become completely insulin independent and convert their own energy stores to glucose to be used as energy. We are incredibly adaptable creatures and a small amount of stress is completely normal to help us meet everyday challenges such as taking a driving test, making a speech or even meeting someone new. It makes us feel alive! The problem as we age is that we may begin to lose that adaptability. Particularly if we have been through difficult experiences, stress can go on for too long and use up too much energy. Eventually the part of our brain, known as the hippocampus, which is linked to learning and memory starts to shrink.
Good news is in sight in the form of physical activity. What physical activity does is activate a gene in an area of the hippocampus which stimulates the production of a nerve growth factor known as Brain Derived Neurotropic Factor (BDNF)]. This fantastic protein actually promotes the growth of new neurones and even helps prevent already existing ones from dying. A bigger hippocampus means our ability to control stress improves.
Newsleter April 2013