2010 Press Releases

  • New Study Strengthens Link Between Everyday Stress and Obesity

    Released September 1, 2010 - The effects of stress on the meal patterns and food intake of animals exposed to the equivalent of everyday stress on humans suggest that there is not only a short term impact – the stress can cause metabolic changes in the longer term that contribute to obesity. The findings were determined by use of the visible burrow system (VBS), an animal model of chronic social stress to produce stress-associated behavioral, endocrine, physiological and neurochemical changes in animals.
  • Ant Colonies Shed Light on Metabolism

    Released August 26, 2010 - A recent study of California seed harvester ants that examined their metabolic rate in relation to colony size may lead to a better appreciation for the social, six-legged insects, whose colonies researchers say provide a theoretical framework for understanding cellular networks. The researchers found that the metabolic rate of seed harvester ant colonies could not be predicted by adding and dividing the by-products of the metabolisms of all individual colony members. The team also found that the larger the colony, the lower its overall metabolic rate.
  • Response to Repetitive Laughter Similar to Effect of Repetitive Exercise

    Released April 26, 2010 -- Since the 1980s, California researchers have been studying the human body’s response to mirthful laughter and have found that laughter helps optimize many of the functions of various body systems. They are the first to establish that laughter helps optimize the hormones in the endocrine system, which leads to stress reduction. They have also shown that laughter has a positive effect on modulating components of the immune system, including increased production of antibodies and activation of the body’s protective cells, including T-cells and especially Natural Killer cells’ killing activity of tumor cells.