What are the disadvantages of sleeping with the light on

In life, some people like to turn on the light to read before going to bed, and fall asleep while reading, and forget to turn off the light. Some families also turn on the light to sleep because their babies are young, so in order to take care of the children more conveniently. In fact, sleeping with the light on is not good for our body at all. In severe cases, it may cause low immunity of our body. There are also many disadvantages for children to sleep with the light on. Today we will learn about the disadvantages of sleeping with the lights on.

1. Inhibit the body's leg and pigment secretion, increasing the risk of cancer

Studies have found that there is a pineal gland in our brain, which can secrete melatonin when the human body enters sleep time at night. Melatonin has a huge effect on the human body. It can not only lower blood pressure and slow down heartbeat, but also enhance our body's immune ability. Without melatonin, the cancer cells and tumor cells in the body will rapidly fission and grow, and the destructive power to our DNA will increase exponentially, which will greatly increase the risk of cancer.

2. Cause children to have precocious puberty

Under normal circumstances, the secretion of hormones in our body has a fixed time point. For example, the highest secretion time of androgen should be around seven or eight in the morning, which is when the light conditions are better. Experts tell us that too long exposure to light will lead to a decrease in the amount of melatonin secreted by our bodies, causing the premature secretion of follicular estrogen in girls, so the child's breasts will swell prematurely and other sexual organs will develop prematurely.

3. Children’s glasses have problems

The harm of sleeping with the lights on is more likely to occur in children, especially infants or young children. Nowadays, many new mothers like to sleep with the lights on at night to facilitate breastfeeding and taking care of their children at night. But what people don’t know is that too strong light will damage the newborn baby’s eyes. Causes serious damage to eyesight.

The latest research results show that if children under the age of two sleep with the lights on, the chance of them developing myopia in the future is 34%. If they still sleep with the lights on after the age of two, the chance of them developing myopia in the future is 55%. However, the chance of children who sleep with the lights off is only 10%.

Experts tell us that the critical period for a baby's vision development is between two and three years old, and the lighting environment at this time plays a decisive role in the child's future vision. Keeping the lights on for a long time will prevent the pupils from truly relaxing and resting, and the nerves and muscles in the eyes will always be tense. In addition to the high probability of myopia, the hazards of sleeping with the lights on for a long time also include increasing the probability of cataracts, etc.

The above is a detailed introduction about the disadvantages of sleeping with the light on. Sleeping with the light on is a very bad habit. It is okay to sleep with the light on occasionally, but doing so for a long time, especially for children, will cause many consequences, such as precocious puberty and affecting children's intellectual development. Parents must pay attention to this.