Michael is generally a healthy guy. He works out at gym 3 times a week and also plays soccer in an amateur club. He has a good career, and is happily married. The only not so healthy habit is cigarette. He smokes occasionally for many years. One day when he woke up he found many hair on his pillow. He was shocked. He touched his head, and he was terrified finding his hair fell in bundles. Panicked, he hurried to the hospital seeking treatment. The doctors suggested injecte