Former University of Queensland marine biologist Ailbhe S. Kavanagh, Ph.D., and her colleagues observed 76 humpback groups off the coast of Australia for 200 hours between 2010 and 2011 and found that breaching is much more common when pods are at least 2.5 miles apart, with more local slapping of fins and flukes when fellow whales are nearby.
Attaining heightened well-being after a retreat may have a neurological basis, according to research from Thomas Jefferson University’s Marcus Institute of Integrative Health, in Philadelphia. Silent retreats appear to raise the brain’s levels of mood-boosting chemicals, according to Dr. Andrew Newberg, director of research there.
The brain, like the body, needs rest to function, and that comes with silence.
Research from Johns Hopkins University has found that elderly persons that engage in frequent physical activity have a reduced incidence of hearing loss. The researchers tested 706 people of age 70 or older. The subjects responded to a questionnaire about their physical activity levels over the previous 30 days and wore accelerometers to measure their level of day-to-day physical activity.
Based on their findings, the researchers believe that noise pollution will grow faster than the population, doubling every 30 years.