This study looked at CRONies Calorie Restriction Optimal Nutrition Society members who restrict calories by 25% and also looked at CR rodents. The rodents are able to extend life span by 25 to 50 percent. The CRONies expect to live past 100.
The investigators compared core body temperatures of 24 people in their mid 50s who had practiced calorie restriction for at least six years to 24 others of the same age who ate a standard Western diet with higher calorie and fat intake. The researchers also measured core body temperatures in 24 endurance runners of the same age to determine if being lean — like both the calorie restriction group and the runners — was linked to lower body temperature or whether calorie restriction itself was necessary.
The people doing calorie restriction had a lower average core body temperature by about 0.2 degrees Celsius, which sounds like a modest reduction but is statistically significant and similar to the reduction we have observed in long-lived, calorie-restricted mice,” says principal investigator Luigi Fontana, MD, PhD. “What is interesting about that is endurance athletes, who are the same age and are equally lean, don’t have similar reductions in body temperature.
Organisms from yeast to rodents to humans all benefit from cutting calories. In simple organisms, restricting calories can double or even triple lifespan. It’s not yet clear just how much longer calorie restriction might help humans live, but those who practice the strict diet hope to survive past 100.
Dr K has said that endurance runners generally have a shorter lifespan than the norm. It is interesting that the endurance runners studied had higer core body temperatures than the CROMies did. Higher body temp leads to shorter telomeres and shorter lifespans?
Dr K has also said to assist in losing weight rapidly, drink lots of ice cold water. Is there a link to drinking ice water and length of telomeres? In NY there is the Polar Bear Club that relish in taking a swim out on Long Island in December. Do these crazys know something about longevity?
Will you reduce the calories you take in today in exchange for living a long and healthy life free of illness and nursing homes?