Onions are one of the many natural ingredients that can help you sleep better at night if had before bed. How? Onions are rich in L-tryptophan, a form of amino acid that acts as a natural sedative. It also helps in reducing stress levels which also aids a good sleep. It lowers down the level of sugar in your blood which results in a reduction of activity in the human body. Onions are also high Vitamin C which helps in lowering stress levels. However, it has not been proved that Vitamin C can aid better sleep.
Onions are one of the many natural ingredients that can help you sleep better at night if had before bed. How? Onions are rich in L-tryptophan, a form of amino acid that acts as a natural sedative. It also helps in reducing stress levels which also aids a good sleep. It lowers down the level of sugar in your blood which results in a reduction of activity in the human body. Onions are also high Vitamin C which helps in lowering stress levels. However, it has not been proved that Vitamin C can aid better sleep.
导语：现在很多人由于各方面压力导致情绪不稳，晚上容易出现失眠的情况，而这样长久下去也极大的影响了人们第二天的精神状况和工作质量。失眠不仅使人感觉疲乏，还给人造成一种阴影，那么有哪些更好的方法能够帮助我们缓解失眠症状，达到更好的精神状态呢？
厨房中的一些调料，对治失眠都有很好的作用，特别是洋葱和生姜。洋葱和生姜的气味有安神的作用，使大脑皮层受到抑制，闻着这些气味能帮助入睡。所以，床头放个洋葱或者生姜都能达到帮助睡眠的效果。
这些方法都非常简单易行：取洋葱适量，洗净，捣烂，置于小瓶内，盖好，睡前稍开盖，闻其气味，10分钟后即可人睡；也可以将15克左右的生姜切碎，用纱布包裹置于枕边，闻其芳香气味，便可安然入睡。这两种方法一般在使用10天至1个月后睡眠就会明显改善。
也可用洋葱自制“助眠饮料”：取洋葱100克切片，浸泡在600毫升烧酒中，一星期后取出。每天睡前半小时，用10毫升洋葱酒，90毫升牛奶，1个鸡蛋，半个苹果榨汁，一起调匀后饮用。
需要注意的是，洋葱和生姜能促进睡眠，但有些调料则会导致失眠。不少失眠者虽然处处小心，用了很多促进睡眠的方法，可还是没有效果，往往就是由于特殊的饮食习惯而忽略了调料这个因素。建议失眠者，在临睡前不要吃辣椒、大葱、胡椒、桂皮、芥末等辛辣刺激性的食物，以免造成大脑神经兴奋，影响睡眠。
为了保证良好的睡眠，失眠者还要避免在晚间食用高蛋白食物，如鱼肉、鸡鸭等，这些食物不易消化，睡前食用会加重胃肠的负担，影响睡眠，但是适量在睡前喝些牛奶却可以帮助睡眠。睡前不要食用的食物还包括：糖、乳酪、巧克力、腊肠、火腿、热狗、茄子等。因为这些食物都含干酪胺，会刺激肾上腺素的分泌，这将使大脑兴奋而难以人眠。