. Author manuscript; available in PMC: 2023 Dec 19.
Published in final edited form as: Educ Sci (Basel). 2022 Dec 26;13(1):23. doi: 10.3390/educsci13010023
Submitted for possible open access publication under the terms and conditions of the Creative Commons Attribution (CC BY) license (https://creativecommons.org/licenses/by/4.0/).
Figure 2.
Mean Cortisol Levels Over Time.