The grogginess we may feel in the morning usually lasts for up to 30 minutes.

我们在早上的昏沉感通常会持续30分钟。

This often meant a lot of side effects, including headaches, grogginess, and cognitive impairments including difficulty with memory, thinking, and judgment.

这通常意味着很多副作用，包括头痛、昏昏沉沉和认知障碍，包括记忆、思考和判断困难。

We have a lot of patients that come in for jet-lag, they complained that melatonin causes a lot of headaches and grogginess the next day.

我们有很多病人因为倒时差的来买药，他们抱怨说，褪黑素带来了许多麻烦，第二天常常头疼或者头晕。