许多人感觉咖啡因可以使他们的神智更加清楚。高剂量的咖啡可以引起焦虑、头晕、头痛、紧张不安，亦会影响正常睡眠。
Many people feel that caffeine increases their mental alertness. Higher doses of caffeine can cause anxiety, dizziness, headaches, and the jitters. Caffeine can also interfere with normal sleep.
他们发现了一个明显的趋势：任何剂量的酒精均会改变睡眠。
They found a clear trend that just about any amount of alcohol alters sleep.
大剂量的碳水化合物、糖和咖啡因会让你清醒一段时间，但是他们最终将导致一个觧“重磅睡眠”，产生相反的效果。
Large doses of carbs, sugar, and caffeine might keep you awake for a short time, but they will eventually lead to a "crash," and have the opposite effect.
更好的消息，则来自芝加哥拉什大学医药中心的睡眠研究人员JamesWyatt，他发现早上少喝一点咖啡因，然后白天持续饮用很小剂量，这样就可以均匀地抵抗腺苷酸的摄入。
Better, says sleep researcher James Wyatt of Rush University Medical Center in Chicago, to consume a little caffeine in the morning and continue to take it in very small doses throughout the day.
这种血清素是一种神经递质，它有减轻疼痛，降低食欲，镇静的作用，一旦作用剂量较大时，它能促进睡眠。
Serotonin is a neurotransmitter that has the effect of reducing pain, decreasing appetite, and producing a sense of calm, and in too large a quantity, inducing sleep.
研究不同剂量超细珍珠粉对改善睡眠的影响。
To study the effects of the super thin pearl powder with different doses on sleep improvement.
该项研究的疗程为2周，主要考察不同剂量和处方对入睡潜伏期的缩短作用和睡眠时间的持续作用。
The study will measure reduction in time to onset of persistent sleep and sleep maintenance across a range of doses and formulations during two weeks of treatment.
催眠剂量30分钟内即可诱导入睡，催眠作用温和，不缩短REMS睡眠时间，无明显后遗作用。
Dose within 30 minutes of hypnosis can be induced to sleep, and hypnotic effects of moderate, non-REMS shortened sleep time, no significant residual effect.
这项研究试验结果表明在常用剂量下苯海拉明对改善婴儿睡眠并无作用。
"The results of this study" demonstrated that at the most commonly used dose, diphenhydramine may play no role in treating infant sleep problems.
服用他司美琼的志愿者的睡眠时间比服用安慰剂的受试者长30分钟到2个小时，剂量越大产生的效果越明显。
Volunteers who took the drug had between 30 minutes and two hours more sleep than those on the placebo, with the largest dose inducing the greatest effect.
也许最有效的发现是，在深夜饮用一剂量的酒精会抵消睡眠的功效。
Perhaps the most potent finding is that just a single dose of alcohol in the late evening can zap the efficacy of your z's.
探究组阿普唑仑的平均剂量低于对照组，且不良反应少而轻，停药后睡眠改善持续时间长。
Compared with the control group, the mean dosage of alprazolam was smaller in the research group, side effects were fewer and milder and duration of sleep improvement longer after treatment.
探究组阿普唑仑的平均剂量低于对照组，且不良反应少而轻，停药后睡眠改善持续时间长。
Compared with the control group, the mean dosage of alprazolam was smaller in the research group, side effects were fewer and milder and duration of sleep improvement longer after treatment.
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