Night lights downside: would "wither"-turn on the light, muscle atrophy-IT information
On July 15, according to the daily mail of London Road, a new study shows, you may eat healthy food and exercise regularly, but also to note remember to turn off the lights, they have healthy habits. Studies have found that when you turn on the light and keep the brightness at night, the potentially adverse health effects.
In mice several months found that if continued exposure to light can lead to weak. Netherlands Leiden University Medical Centre in yuehanna·meiyeer (Johanna Meijer), said: "our research shows the light-dark cycle is very important to the health of the environment. Environment the lack of rhythm will severely undermine many health parameters. ”
These factors include the immune system caused by inflammation, muscle atrophy and osteoporosis early. Researchers said they observed physiological changes lead to people or animals appeared in the age of "weak". However, in Current Biology, (current Biology) published the report also had some encouraging news.
Dr Mayer said, the good news is that we found out later these adverse health effects are reversible, as long as the restoration of the environment light-dark cycles on the line. Study the relationship between lack of light-dark cycles and diseases, Dr Mayer and her colleagues put the mice under light for 24 consecutive weeks, measuring several key health signals.
Signals found by reading the animal brain activity, continued exposure to light under the circadian rhythm control centers of the brain--the normal rhythm of suprachiasmatic nucleus – 70%. When researchers measured muscle strength, he found, the normal light-dark patterns and circadian rhythm of destruction leads to drop in animal skeletal muscle function.
Worrying is that their bones show signs of deterioration, entered only in pathogens or other harmful factors found that inflammation in the State. But in the mouse back to the standard light-dark cycle for 2 weeks, brain cells quickly returned to their normal rhythm, their health problems are also reversed.
Results suggest that people should be more considering the intensity of the light, especially elderly people. Estimated world population 75% under exposure to light at night, nursing homes and ICU are often 24-hour lighting, patients, doctors and nurses have been exposed to the light. Dr Mayer said: "we used to think of light and dark are harmless or neutral stimulus is harmless to health. Now we realize that research indicates this is not the case of laboratories around the world. ”
She said: "it may not be surprising, because life is evolution under the sustained pressure of the light-dark cycle. We seem to be in this loop optimization, the lack of which would affect the health. "The researchers identified" exposed to light matters ", and they also plan to twist the light-dark cycle on a more in-depth analysis of the impact of the immune system, research on other normal light-dark cycle if there are any good effects on patient health.
晚上持续亮灯的坏处：人会“萎” - 开灯,肌肉萎缩 - IT资讯
7月15日消息，据《每日邮报》道，新的研究报告显示，你或许吃健康食品并经常锻炼，但也要在注意记得关灯，才算有健康习惯。研究发现，晚上开灯并保持在一定亮度时，可能带来不利健康的影响。
对老鼠进行数月试验发现，如果持续暴露在灯光下，会导致身体虚弱。荷兰莱顿大学医学中心的约翰娜·梅耶尔（Johanna Meijer）表示：“我们的研究显示环境的光暗循环对健康很重要。环境节奏的缺失将严重破坏很多健康参数。”
这些因素包括免疫系统引发的炎症反应、肌肉萎缩和早期骨质疏松。研究人员称，他们观察到的生理变化都指向一般人或动物在衰老时出现的“虚弱”。然而，在《Current Biology》（当代生物学）出版的这份报告也有一些令人鼓舞的消息。
梅耶尔博士称，好消息是后来我们发现这些对健康的不利影响是可逆的，只要恢复环境的光暗循环就行。为研究光暗循环缺失和疾病之间的关系，梅耶尔博士和她的同事连续24周将老鼠置于光线之下，测量多个主要健康信号。
通过读取动物大脑活动的信号发现，持续暴露在光线之下使大脑昼夜节奏调节中枢——视交叉上核——的正常节奏降低70%。研究人员测量肌肉力量时发现，正常光暗模式和昼夜节奏的破坏也导致动物骨骼肌肉功能的下降。
令人担忧的是，它们的骨骼显示恶化迹象，进入一般只在病原体或其他有害致病因素才发现的发炎状态。但在老鼠回到标准的光暗循环2周后，大脑细胞快速恢复了它们正常的节奏，它们的健康问题也逆转。
研究结果建议，人们应该更多考虑光的强度，特别是老弱人群。估计世界75%的人口在晚上暴露在光线之下，养老院和ICU常常24小时点灯，病人、医生和护士一直暴露在灯光下。梅耶尔博士称：“我们常常认为光和暗都是无害的，或中性刺激对健康无害。现在我们意识到，世界各地的实验室的研究都说明并非如此。”
她表示：“这可能不奇怪，因为生命是在光暗循环的持续压力下进化的。我们似乎是在这种循环中优化的，缺少这种循环会影响健康。”研究人员确定“暴露在光线之下很要紧”，同时他们也计划对扭曲的光暗循环对免疫系统影响进行更深入分析，研究其他正常光暗循环对病人健康是否有好的影响。