Light sleep reduces the human body immunity stewardess prone to breast cancer

(); According to Taiwan's livelihood daily reported, some people prefer light sleep, psychologically more sense. But the study found that sleep open lamp inhibits human melatonin secretion, decreased immune function. Therefore, many people in the midnight oil, vulnerable to virus threats.

According to foreign magazines "reports" of experimental medicine, scientists on the United States, Finland, Denmark region air hostesses are epidemiological survey, the stewardess in the aircraft work 15 years after breast cancer incidence increased twice, about a hundred experienced hostesses in breast cancer. Other scholars to 200 adults do research, I found just one in three to seven o'clock in the morning, sitting in the light not sleeping, will enable these adults significant decline of immunity.

Human brain in the name of the pineal gland secretion organ, researchers found that one of the features in the pineal gland is at night when the human body to sleep, the secretion of large amounts of melatonin, a hormone in the night from 11 pm till 2 am secretion after most exuberant, dawn will stop secreting there is light. Melatonin secretion, can inhibit the body's blood pressure drops, sympathetic nerves, heart rate slows, breathing, heart to make the immune system is strengthened, organism recovery fatigue and even kill cancer cells. However, pineal gland has a most major characteristic is, as long as the eye-sight of the light source, melatonin is suppressing secretion of gate command stops. We know that human eyes have some hidden light source, if you wear a sleep mask to sleep, let the eye at night not exposed to light, even if the light sleep will not affect melatonin secretion. However, once the light is wide open, plus get up frequently during the night, melatonin secretion, more or less will be suppressed and indirect effects on immune function, which is why the night shift workers decreased immune function, more prone to cancer.

Often hear people complain that the light is too strong for a long time to sleep, to sleep with their heads high in order to sleep will be sweet, fatigue was able to recover. In this sense, it is the big sleep sleep science. If people living in and night out of environmental conditions, the natural immune function. But the night shift workers sleep in after work, as far as possible to Dim the room lights, so that the brain of the pineal gland secrete enough melatonin, to ensure that the needs of human normal so weary body be restored as soon as possible.