Huiusmodi remediis reducitur natura ad debitum statum, causatur ex his delectatio, quia hoc est quod delectationem facit, ut supra dictum est.
Such remedies, from the very fact that they bring nature back to its normal state, are causes of pleasure, because this is precisely in what pleasure consists, as stated above (q31 a1).
Unde, cum omnis delectatio tristitiam mitiget, per huiusmodi remedia corporalia tristitia mitigatur.
Therefore, since every pleasure assuages sadness, sadness is assuaged by such like bodily remedies.