Tuesday, October 4, 2005
Dr. Stephen Schoenthaler, a Professor of Criminal Justice at the California State University in Stanislaus, has long argued that there is a link between a healthy diet and decreased aggressive behaviour, as well as with increased IQ and school performance.
Dr. Schoenthaler is well-known for a youth detention center study where violations of house rules fell by 37% when vending machines were removed and the cafeteria replaced canned food by fresh alternatives. He summarizes his findings by saying that “Having a bad diet right now is a better predictor of future violence than past violent behaviour.” In a very large test, Schoenthaler directed a study in meals at 803 New York City schools, in low-income neighbourhoods, finding that the number of students passing final exams increased by 16%.
Critics have questioned some of Dr. Schoenthaler findings, due to the lack of placebo control groups. However, more recent work by Dr. Bernard Gesch, a physiologist at the University of Oxford, has placed some of the work on a more scientific footing. Dr. Gesch found that nutrition supplements produced a 26% drop in violations of prison rules over a placebo, and a 37% decrease in violent offences. The Netherlands has embarked on a wider scale dietary research program in 14 prisons.
The short term behaviour consequences of ingesting sugar are well understood: an initial burst on energy, followed a sugar low in which your body produces adrenalin, which makes you irritable and explosive. However, Schoenthaler and Gesch suggest that there are long term impacts over and above the short term consequences of blood sugar variations.
Monday, June 26, 2006
Dr. Douglas Kerr, a neurologist at Johns Hopkins University, has recently led a research team to identify enough of the chemicals necessary to regrow motor neurons. They have succeeded in partially restoring paralyzed rats‘ ability to walk.
These results represent major progress towards curing many nerve-related problems in humans, such as Lou Gehrig’s disease and spinal cord injuries. However, Dr. Karr emphasized that it will be many years before any possible treatments for humans become available.
Dr. Naomi Keitman of the National Institutes of Health‘s neurology division said “They did something that people have been trying to do for at least 30 years and literally hit a brick wall until now.”
The research will be published in the Annals of Neurology.