תַּאֲוַ֣ת עָצֵ֣ל תְּמִיתֶ֑נּוּ כִּֽי־מֵאֲנ֖וּ יָדָ֣יו לַעֲשֽׂוֹת׃
懶惰人的慾望必害死他，因為他的手不肯做工。
Peri HaAretz
And so the Sages said "Man does not die with half his inclination still in his hand" and therefore they 'age' the understanding of Man so that his understanding is never calm and constantly lusting. And as the text says the "craving of a lazy man kills him", and the statement "hope deferred sickens the heart..."