笔者长期从事脑力劳动,有时工作劳累,或看书、写作时间过长,就会引发心悸、乏力、食欲欠佳、失眠等“神经衰弱”症状。此时只要及时口服维生素B1片,症状就会很快缓解。因为大脑消耗的能量主要是葡萄糖,而VB1的主要功能就是参与糖的代谢,用脑过度,也会使VB1过度消耗,糖代谢无法正常进行,机体只能以加快血液循环的方式来维持糖对大脑的供给,因此会出现心悸症状。糖代谢不畅,也会累及消化功能,导致食欲不振。糖供应不良,大脑能量得不到及时补充,则 I have long been engaged in mental work, and sometimes tired of work, or reading, writing for too long, it will lead to palpitations, fatigue, poor appetite, insomnia and other “neurasthenia” symptoms. At this point as long as timely oral administration of vitamin B1 tablets, the symptoms will soon ease. Because the energy consumed by the brain is mainly glucose, the main function of VB1 is to participate in the metabolism of sugar. Overuse of the brain can over-consume VB1 and prevent glucose metabolism from proceeding normally. The body can only maintain glucose by accelerating blood circulation The supply of the brain, so there will be symptoms of palpitations. Poor glucose metabolism, but also affect the digestive function, leading to loss of appetite. Poor sugar supply, brain energy can not be replenished, then