Typically, humans tend to be awake in the daytime and sleep at night for about 8 hours. The brain has a small part referred to as the circadian clock, which monitors the amount of light that one can see at each particular moment. When the light starts to decrease in the evening, this clock in the brain detects this and prompts the brain to secrete the hormone melatonin, signalling the body to sleep. At night the levels of this hormone are high. In the morning, the levels break, and during the day, they stay low. Instead, in the day time, the body’s state of being awake is increased by neurotransmitters such as acetylcholine and noradrenaline. These two keeps an individual synchronized in their day-night cycles. Multiple other body functions, including digestion, temperature, blood pressure and heart rate, vary throughout the day based on the circadian clock activity. This fluctuation in the rate of activity through 24 hours is referred to as the circadian rhythm.
Persons who go for night shifts run against this rhythm, which can harm their health. When it comes to health, it is always essential to have health insurance. This will give you peace of mind as …
