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LITTLE FALLS, N.J., May 13 -- Exercise regimens that burn more calories over less-intense periods of exercise can increase weight loss and reduce cardiovascular risk factors better than standard cardiac rehabilitation programs, researchers have found. Action Points  Explain that walking more at a slower pace improved weight loss and cardiac risk factors better than standard cardiac rehabilitation programs.Note that current cardiac rehabilitation guidelines were written when deconditioning after lengthy hospital stays was common, which is no longer the case. In a randomized trial, overweight patients who exercised more but with less intensity lost twice as much weight as those on typical cardiac rehab regimens and had greater reductions in markers of metabolic syndrome, according to Philip A. Ades, M.D., of the University of Vermont, and colleagues. "High-calorie-expenditure exercise is superior to standard cardiac rehabilitation exercise in accomplishing weight loss and favorably altering cardiometabolic risk factors, particularly insulin resistance, in overweight patients with coronary heart disease," the researchers reported online in Circulation: Journal of the American Heart Association.

(NaturalNews) 30 years ago the famous Nobel laureate Linus Pauling said that vitamin C supplements can prevent cancer, a highly controversial statement at the time. Now a team of Johns Hopkins scientists have shown that vitamin C stops the growth of some tumors in mice.The StudyThe study was lead by Chi Dang, M.D., Ph.D., professor of medicine and oncology and Johns Hopkins Family Professor in Oncology Research. Their work is detailed in Cancer Cell, Volume 12, Issue 3, 230-238, 11 September, 2007. They found that the antioxidants' actual role may be to destabilize a tumor's ability to grow under conditions where there isn't enough oxygen to feed it. The conventional belief is that vitamin C helps prevent cancer growth by grabbing up volatile oxygen free radical molecules and preventing the damage they do to our DNA. "The potential anticancer benefits of antioxidants have been the driving force for many clinical and preclinical studies," Says Dang. "By uncovering the mechanism behind antioxidants, we are now better suited to maximize their therapeutic use."

ScienceDaily (May 13, 2009) — Do biofuels always create smaller carbon footprints than their fossil-fuel competitors? Not necessarily, finds a paper published in Elsevier's Environmental Impact Assessment Review. See also: Earth & Climate Energy and the Environment Renewable Energy Geography Global Warming Air Quality Environmental Science Reference Activated carbon Slash and burn Combustion Natural gas The article reports that in the UK, the carbon footprint for charcoal grilling is almost three times as large as that for LPG grilling. (Liquefied petroleum gas (LPG), often referred to as propane, is a mixture of mostly propane and butane).

Increased intakes of folic acid by mandatory fortification of grain products to reduce neural tube defects may also reduce a baby’s risk of severe congenital heart defects, says a new study. The incidence of the heart problems was reduced by 6 per cent following mandatory fortification of grain products, introduced in Canada in 1998, researchers from McGill University and the University of Alberta report in the British Medical Journal.