Time difference?Consider changing your circadian rhythm

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During the epidemic, Many people barely leave their communities, let alone their own time zone. But vaccines are available, cabin fever is rampant, and the holiday travel season is approaching. Therefore, it is inevitable that there is time difference.

The internal timing device of the human body, scientifically called the biological clock, is a powerful force. It synchronizes functions across organs and tissues, and affects cognitive function, digestion, sleep, and Even asthma. Adjusting the biological clock to a new time zone or schedule is not as simple as resetting the watch, but current research on how to manipulate it is helpful to anyone, whether they are going to their parents-in-law’s house or to Mars.

Carrie Partch, a professor of biochemistry at the University of California, Santa Cruz, who studies the circadian system, said: “Now that we understand the molecular energy of the clock, we can make good use of the energy of the clock. There is a lot of hope in the future.” She said that we are concerned about the clock. The more we understand, the more freedom we will have, because we can make it an ally rather than an enemy.

Throughout the body, cells have their own biological clock to regulate metabolism and other cellular functions. These clocks coordinate between other cells in a particular organ and even between organs-although scientists are still trying to figure out how they do this. All these individual clocks are regulated and synchronized by the suprachiasmatic nucleus of the brain, which is the “pacemaker” part of the hypothalamus, which is highly sensitive to external stimuli, especially light and dark. Light indicates that it is time to wake up and stay alert, while darkness means it is time to slow down and fall asleep.

Although these signals are closely related to the sleep cycle, they have downstream effects on many biological functions. “I think the circadian pacemaker is the conductor of the orchestra,” said Irene Flynn-Evans, director of the Fatigue Countermeasures Laboratory at NASA Ames Research Center. “It controls the entire biological function. There are biological clocks in the liver, intestines, and reproductive hormones. The main pacemaker in the suprachiasmatic nucleus somewhat synchronizes the timing of all biological functions.”

But that internal timekeeper can’t always keep up with human behavior. When a traveler quickly traverses a time zone, the biological clock will be out of sync with the outside world. This experience is called jet lag by most people.This mismatch can lead to Symptom range These include fatigue and drowsiness, insomnia, and even digestive problems.

For most people, this is a relatively rare event, just an inconvenience. But for workers like pilots and flight attendants who have to endure these changes every day, jet lag can affect their long-term health. Even relatively short jumps can affect cognitive function.one 2017 learning A study published by Northwestern University researchers found that professional baseball players only cross two or three time zones during the game, and their performance is worse. The same problem also exists in shift workers (such as nurses) and people with irregular working hours (such as long-distance truck drivers), who work according to schedule and make them sleepless at night.

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