LED technology assists the improvement of sleep and emotional problems in Alzheimer's patients

A lighting experiment was conducted at the Rensselaer Polytechnic Institute (Rensselaer Polytechnic Institute) lighting research center, pointing out that Alzheimer's patients in a nursing home have a chance to improve sleep and emotional problems under the light of natural light.

The researchers conducted at least 4 weeks of experiments in 43 of the three states in the United States, of which 37 were more than half a year. According to the habits of the sanatorium, the researchers will provide a table with LED lighting, or the lighting of a single room. Since lighting stimulates the brain part of the melatonin hormone and regularized the body's activities, more than half of the patients have improved their performance in sleep disturbance and depression after the experiment.

According to statistics, there are 5 million 700 thousand people in the United States suffering from Alzheimer's disease. In addition to the problems of thinking and memory, the patients also have symptoms such as sleep disturbance, irritability, anxiety, and confusion of thoughts. Mariana Figuerio, the head of the research team, said that one of the reasons for the lack of self-care in Alzheimer's patients is due to lack of sleep and behavior.

Figuerio believes that people who continue to be exposed to darker light can lead to a decline in sleep quality, improve the symptoms of Alzheimer's patients, and improve 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, the inhibition ratio of melatonin on the light source is increased during the day, and the night is reduced, allowing the patient to have regular day and night activities.

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