LED Dimming Technology Could Improve the Health of Alzheimer Patients

A lighting experiment conducted at the Rensselaer Polytechnic Institute in New York, USA, showed that patients with Alzheimer's disease in sanatoriums had an opportunity to improve sleep and mood problems when exposed to natural light-like sources.

Researchers conducted at least four weeks of experiments in 43 U.S. states, 37 of which lasted longer than six months. According to the habits of nursing home patients, researchers will provide a table with LED lighting, or provide a single room lighting. Since lighting stimulates the brain to secrete melatonin hormones and regularizes the body's routine, more than half of the patients improved their performance in sleep disturbance and depression after the experiment.

According to statistics, a total of 5 million 700 thousand people in the United States suffer from Alzheimer's disease. In addition to thinking and memory problems, patients also have sleep disturbance, irritability, anxiety, confusion and other symptoms. Mariana Figuerio, head of the research team, said one of the reasons Alzheimer's sufferers lack self-care is lack of sleep and behavior.

Figuerio believes that if people continue to be exposed to darker light, will lead to a decline in sleep quality, to improve symptoms of Alzheimer's patients, you can start by improving the quality of lighting. Figuerio also said that under the progress of LED technology, it is easier to control the color of light and light. Through the light source, the inhibition ratio of the light source to melatonin is increased during the daytime, while it is decreased at night, so that patients can have regular day and night work and rest.