Biological mechanisms called circadian rhythms regulate biological functions throughout the day in animals, including sleep, eating schedules and metabolism, said Dr. Michael Young. "“We have clocks in our skin, liver, lungs, kidneys, skeletal muscles and, of course, our brains.”
The effects on people of contact with nature—whether outdoors or indoors (as from plants, photos or window views)—is an emerging field of research showing potential to help address important public health problems, said Dr. Gregory Bratman.
On the Cover
Section of auditory nerve in a young adult mouse. Supporting glial cells (blue) coat neuron fibers (red) and allow fast, reliable transfer of sound information from the ear to the brain. Researchers are testing whether they can target glial cells to prevent neural loss and restore healing.