Ashtangasamgraha 19.25

19.25

vyāyāmādūṣmaṇastaikṣṇyādahitācaraṇādapi |

koṣṭhācchākhāsthimarmāṇi drutatvānmārutasya ca ||

From physical exercise, from sharp heat, from indulgence in unwholesome things, / and because of the speed of vāta, the doṣas go from the visceral cavity to the extremities, bones, and vital spots.