Spencer W. Kimball taught,

“The gospel of Jesus Christ magnifies the importance of the body and the dignity of man. The body will come forth in the resurrection. It will be free from all imperfections and scars and infirmities which came to it in mortality which were not self-inflicted. Would we have a right to expect a perfect body if we carelessly or intentionally disfigured or damaged it? We shall have our resurrected perfected bodies through the eternities. They were given to us. We had little to do with getting them. It then becomes our duty to protect them from hazards, from mutilation, or disfigurement. We should treat them well, building them with proper foods, proper rest, proper exercise, and keep them strong, robust, beautiful, and undamaged and live on and on till called home by our Lord.”

(President Spencer W. Kimball – Teachings of Spencer W. Kimball, pp. 36-37.)