Learning a new language while sleeping? It sounds like something out of science fiction. But a new study has found that we may actually be able to learn while we sleep. Of course, listening to foreign language audio while sleeping is unlikely to immediately give you the ability to order food in a foreign language the next morning, but according to experimental results from researchers at the University of Bern in Switzerland, doing so may improve your ability to remember new vocabulary. The results of this study were published in the journal Current Biology in January. “We found in our study that the sleeping brain can actually encode new information and store it for a long time. More importantly, the sleeping brain can make new

1 o’clock: It is late at night. Most people have slept for 3-5 hours. From the falling asleep stage, the light sleep stage, the medium sleep stage, and the deep sleep stage, they enter the dreaming sleep stage. It is easy to wake up/have dreams at this time, and they are particularly sensitive to pain. Some diseases are easy to worsen at this time. 2 o’clock: The liver continues to work, using this period of quiet time to speed up the production of various substances needed by the human body and remove some harmful substances from the body. At this time, the working rhythm of most organs of the human body slows down or stops working, and they are in a state of rest. 3

Alzheimer’s disease (AD) is a progressive neurodegenerative disease with an insidious onset. The abnormal accumulation of amyloid beta (Aβ) with age is considered to be a major pathological cause of the disease. Usually, the disease occurs in the elderly over 60 years old, and there is currently no prevention or treatment. However, a research report recently published in Current Biology by researchers from psychology and neuroscience at the University of California, Berkeley found that “sleeping well” may be an important way for people to deal with Alzheimer’s disease. There is a consistent link between poor sleep quality and increased accumulation of toxic proteins. Those with worse sleep quality accumulate Aβ faster in their brains, which indicates a higher risk of Alzheimer’s disease. “Sleep is almost

Many life activities in organisms show periodic circadian rhythm. In mammals, many life activities show circadian rhythm fluctuations with a period of about 24 hours. The circadian rhythm is mainly formed by 14 core biological clock genes in cells through several interacting transcription-translation feedback loops. When the quantitative parameter indicators of biological rhythm include median, amplitude and peak phase, it can also be simply understood as follows: biological clock genes regulate downstream clock-controlled genes from three aspects: expression level, expression sequence and expression time, thereby regulating the body’s functions. Biological rhythm disorders are the cause of tumors, endocrine, cardiovascular and neuropsychiatric diseases. Although the mechanism of circadian rhythm is basically clear at present, little is known about the function of biological clock genes and the