Garudapurana 1.154.17

1.154.17

āmodbhavācca raktasya saṃrodhādvātapittatā /
uṣṇākrāntasya sahasā śītāmbho bhajatastṛṣā //

From the rising of undigested matter and from the obstruction of blood, vāta and pitta arise. / Thirst arises for one overcome by heat who suddenly drinks cold water;