§ Rabbi Alexandri said that
Rabbi Ḥiyya bar Abba said: The sick person recovers from his illness only
when the heavenly court forgives him for all his sins, as it is stated:
“Who forgives all your iniquity; Who heals all your diseases” (Psalms 103:3).
Rav Hamnuna said: When he recovers, he returns to the days of his
youth, as it is stated in a verse with regard to one recovering from
illness: “His flesh is tenderer than a child’s; he returns to the days of
his youth” (Job 33:25). Interpreting the verse: “The Lord will support him
upon the bed of suffering; You overturned all his lying down in his illness”
(Psalms 41:4), Rav Yosef said: That is to say that the sick
person forgets his studies, as everything that is organized is
overturned. (Nedarim
41a)