I would suggest that people who “brush off” illness in others are really pandering to their own fears of illness, a very human reaction. However is it not said ,” to love thy neighbour as thyself”, it surely doesn’t reflect care and concern, which we should all express to those suffering physical or any other human condition that causes that person to suffer. Showing concern is just a reflection of our desire to sympathize with conditions that could afflict any of us at any time. A word of kindness can make a world of difference to those suffering.