Sforno on Genesis 43:27/ספורנו על בראשית מ״ג:כ״ז

1השלום? is he well (healthy) in body? Physical health consists of opposite forces in the body being in perfect balance with one another. [hence the word שלום, “being at peace, being in perfect harmony,” is an acceptable word for describing physical health. Ed.]

2אביכם הזקן אשר אמרתם, I am asking, seeing that it is not frequent that aged people are in physically good health. Our sages already stated that “the lips of the aged have a tendency to become worn out and their ears to become hard of hearing.”