Figure 2

![Figure 2: Figure 2](https://pdfs.citedhealth.com/figures/29854326/60.png)

> Source: Ki-Bae Hong et al. "Two combined amino acids promote sleep activity in caffeine-induced sleepless mo." *Nutrition research and practice*, 2018. PMID: [29854326](https://pubmed.ncbi.nlm.nih.gov/29854326/)

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  <img src="https://pdfs.citedhealth.com/figures/29854326/60.png" alt="Figure 2" />
  <figcaption>Figure 2. Figure 2<br>  Source: Ki-Bae Hong et al. "Two combined amino acids promote sleep activity in caffeine-induced sleepless mo." <em>Nutrition research and practice</em>, 2018. PMID: <a href="https://pubmed.ncbi.nlm.nih.gov/29854326/">29854326</a></figcaption>
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