Fasting

I have heard many people at church and Bible studies refer to fasting as the lost spiritual discipline. Well a doctor I work with told a story about a patient he saw years ago. He told the patient to come back in 14 days fasting for blood work which is something we commonly ask patients to do. The patient called a few days later and said, "Doc, I don't think I can make it a full 14 days." He had been fasting since he left the office!