The Bible says not to be anxious for anything which clearly indicates a sin problem for those anxious. But some claim there is medical anxiety and I am not sure if I can believe it, or not believe it. The other day ago I got very anxious, but it was my own fault and non trust in God that made me so. Once I read Charles Stanley's book Success Gods Way, and Stanley pointed me to certain scriptures I was calm, and I realized that my attitude and thinking patterns contributes to anxiety. Stanley used a verse in Philippians saying "Finally, brothers and sisters, whatever is true, whatever is noble, whatever is right, whatever is pure, whatever is lovely, whatever is admirable—if anything is excellent or praiseworthy—think about such things" (Phil 4:8,NIV).