As time goes by Yesterday, I had a meet with my girlfriend. While I was going to her house, I met by chance my friend's friend, Tony, who I have not seen for some months. I know Tony since he was in the high school and he was very thin.. After beginning to study at the university, he became fat. Every time I saw him, his body was bigger and I always asked me what he was waiting to start to lose weight. However, yesterday was different: Tony was thin again! I complimented him for his achievement and he told me he lost weight walking every day during one hour. After to say goodbye to him, I continued my way. In the next block, I met another known person, my friend Jose, who I have never seen since high school. For my surprise, Jose became fat and gray with just 25 years! It was unbelivable for me, because he was my thinnest friend! We talked something about how long we did not see each other and other old friends, and I continued my way to my girlfriend's house. Up to now, I am very curious if they were so surprised with my appearence as I did with theirs.