Inhaling vetiver scent improves alertness and brain function.

吸入岩兰草香味提高警觉性和大脑功能。

However, participants largely agreed on bergamot and vetiver, so lower or higher concentrations may have been needed for these scents.

然，者很大程度上同意佛手柑和香根草，因此这些味能需要更低或更高的浓度。

If you use essential oils, you might want to pull out your lavender or vetiver as you do your centering breathing exercise.

如果你使用精油，进行集中呼吸练习时，取出你的薰衣草或香根草精油。

A 2016 study also concluded that " the stimulating effects of vetiver essential oil might be beneficial for learning and memory processes" and can be used as a stimulant to improve task performance.

2016年的一项研究得出结论，“岩兰草精油的刺激效果能对学习和记忆过程有益”，并作为一种刺激剂来提高任务表现。