Charak Samhita
व्यायामाच्च विहाराच्च विक्षिप्तत्वाच्च चेतसः। न क्लेदमुपगच्छन्ति दिवा तेनास्य धातवः॥२३९॥
During daytime, exercise, other physical and mental activities (cause heart to pump blood properly to) prevent the genesis of kleda (excess moisture) in various dhatus
english translation
vyAyAmAcca vihArAcca vikSiptatvAcca cetasaH। na kledamupagacchanti divA tenAsya dhAtavaH॥239॥
hk transliteration by Sanscript