vitamin

I bought some books on nutrition and learned that human eyes are made of vitamin A. After hours of programming or gaming, my eyes usually get tired and dry. So I bought some vitamin A pills. Then I was told vitamin A can not be metabolized without vitamen B, D, E. So I stopped taking pills and began eating more vegetables.

I also bought cook books, because I got tired of spontaneous food experiments. I downloaded a software which can remix music, together with some tutorials. I have a computer and want to make good use of it.