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"Lack of aerobic fitness may impair how the heart copes with the stress of running a marathon, Larose and his colleagues said. "This is not a permanent injury that will leave any type of scar," said Larose, a professor of medicine at Laval University at Quebec City."

The Sport Specific Approach to Strength Training Programs Sport-specific strength training programs are fundamental to an athlete's development and success. Long gone are the days when coaches shunned weight lifting for fear that it might hinder the performance of fine skill and correct technique. It's now accepted that high levels of strength are a prerequisite to superior speed, power, strength endurance and overall sporting performance.

"Researchers from the University of Michigan discovered that a session of aerobic exercise increases storage of fat in muscle, which actually improves insulin sensitivity. Low insulin sensitivity, or insulin resistance, is an impaired ability of the body to take up sugar from the blood, which can lead to high blood sugar and diabetes."

"Dr. Levine, a Howard Hughes Medical Institute (HHMI) investigator at the medical center, decided to focus on one specific health effect of exercise -- the ability of exercise to prevent blood sugar abnormalities in the face of a high-fat diet. Her mouse study provides the first evidence that exercise stimulates autophagy."

"In the few, limited tests conducted outside the United States, BPS shows estrogenic activity - not as strong as BPA, but not a good sign. BPS is now used in the United States to make PES (polyethersulfone) plastic. Some baby bottles marketed as BPA-free use PES plastic. Bisphenols are shaping up to be a dysfunctional family of chemicals. BPAF is BPA's fluorinated twin. It is used in electronic devices, optical fibers and more. New studies have found BPAF to be an even more potent endocrine disrupter than BPA. Bisphenol B and Bisphenol F are other variants used instead of BPA in various products. In the limited testing done on those chemicals in other countries, scientists found Bisphenol B to be more potent than BPA in stimulating breast cancer cells. "

"The onset of wrinkles, muscle wasting and cataracts has been delayed and even eliminated in mice, say researchers in the US. It was done by "flushing out" retired cells that had stopped dividing. They accumulate naturally with age. The scientists believe their findings could eventually "really have an impact" in the care of the elderly."