Pacing and Mood Changes While Crossing the Adriatic Sea From Italy to Albania: A Case Study. An Italian group has accompanied a swimmer who swimmed 78 km through the Adriatic Sea of Italy to Albania. During the nearly 24 hours of swimming, the float went through heights and depths as well as an increasing fatigue.
Surprisingly, the cortisol levels rose to 23 times the output value. All details about this performance can be found under https://pubmed.ncbi.nlm.nih.gov/25310382/