EATING FEWER CALORIES SAFELY MAY LENGTHEN LIFE: THESE GUYS SAY THEY THINK THEY KNOW WHY
If you eat fewer calories while still getting a well balanced nutritional diet,the chances are good that you will live longer. That seems to be the upshot of several reports that have been published over the years. It has been reported for many years that chronic calorie restriction without nutritional deficiencies increases the length of life. Now a study reports that they may have found a gene that explains why calorie restriction may lengthen life. Scientists can "knock out" or shut down the function of various genes in a study animal to see which are important. They are able to selectively turn off a gene in an animal and then see what happens. It is somewhat analogous to going into the electrical equipment room of a large building and removing a part from some machine you see. If the air conditioner stops working you know that part had some relation to the air conditioning. They often use a worm called C. elegans because it is so simple and well understood yet by studying it they can probably learn lessons applicable to higher organisms.
A research group says that they have a found a gene that codes for a protein in C. elegans that is related to longevity and that calorie restriction may be causing increased production of the pha-4 protein and so leading to longer life (at least in C. elegans).
VIDEO CALORIE RESTRICTION CHASING LIFE -Click the arrow to start the video