DICTIONARY LINK HERE
The use as 'refreshing' is probably older than dirt, being that this meaning is derived from Han-Ja 爽(상) =bright, clear, fresh; and 快(쾌) = happy, cheerful, pleasant.
I would bet it's at least a little older than your study of Korean, this expression I remember from the first lesson of "한국어 고급 1" (KOREAN Advanced 1) Published Oct. 1, 1999 by Manna Publishing Ministry
"매일 아침 공원을 한 바퀴 뛰고 나면
기분이 상쾌해지고 몸도 가벼워집니다." Running one lap around the park each morning is refreshing and invigorating (lit: refreshes my spirit/emotion and makes my body feel light).