Therefore I beseech Your Excellency, asking for a great favor that you take great care to amend the infirmity of your body. For despondency can produce physical illness; and when the body is in pain and great weakness, when it is completely neglected, and when it is deprived of doctors, temperate weather, and an abundance of daily necessities, consider how not a little aggravation of distress is caused thereby.
—Saint John Chrysostom, Letters to Saint Olympia