![]() Research has shown that night-shift workers who were exposed to bright light during their shift and wore sunglasses on the way home to suppress light drifted off to sleep quicker and slept for longer after their shift than people who received no bright light exposure.įurthermore, another study found that intermittent exposure to bright light is almost as effective as continual exposure. By morning light, the body suppresses melatonin and elevates cortisol levels to make the body feel more awake.Īrtificial light can affect the circadian pacemaker in the same way as sunlight, and timed exposure to bright light can help alter the body’s sleep cycle.ĭuring night shifts, people can try to “trick” their body into an alert state with exposure to bright light and promote sleep by suppressing light exposure after their shift. For example, the body releases melatonin as it gets dark in the evening to instigate drowsiness. Repaying some of the sleep debt as quickly as possible will help individuals recover sooner.Įxposure to light triggers chemical events in the circadian pacemaker that affects your sleep and wake cycles.
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