Scientists have found that exposure to blue light can help patients with mild brain damage sleep better

Sleep late at night, tired during the day; do not sleep at noon, collapse in the afternoon In this "pressure mountain" era, we really can't sleep if we want to However, poor sleep will not only affect our working and learning state, but also affect the progress of brain recovery from the injury Recently, a new study published in the international journal Neurology of disease found that there might be a way to solve these problems https://doi.org/10.1016/j.nbd.2019.104679 Researchers from the University of Arizona suggest that patients with mild brain injury can get better sleep after receiving blue light irradiation in the early morning, and the drowsiness during the day is reduced The sleep time of the night is earlier, and the recovery speed of brain from the injury is faster In the experiment, researchers recruited 32 participants aged 18 to 48 who had experienced mild concussions in the past 18 months The participants were divided into two groups and received 30 minutes of blue light and amber placebo light in the morning for six weeks The researchers monitored participants' sleep / wake-up activities through wrist activity recorder and online sleep diary one week before and throughout the treatment period, and conducted a comprehensive neuropsychological evaluation on them Phototherapy conditions and experimental design The results showed that compared with amber light, blue light produced significant phase advance in sleep onset and shift time of participants Compared with the baseline, participants exposed to blue light fell asleep 57.5 minutes earlier in the last week, while those exposed to amber light fell asleep 13.8 minutes later Meanwhile, compared with the baseline, participants exposed to blue light woke up 55.9 minutes earlier in the last week, while those exposed to amber light woke up 16.1 minutes earlier Different effects of different light on sleep