Why Gen Y : Generation Y refers to the specific generation born between the 1980’s to the early 2004’s. Thailand have Gen Y 1/4 of nationwide about 27%.Lifestyle their like everything fast , technology , takecare of themselves, freedom, out going, trandy.Today Gen Y increased role in marketshare because Gen Y go to working age and grow up in their position so Gen Y have a purchasing power and now a days health trand is very popular