Nowadays, it is popular [to be thin for beauty], but being underweight is not a good thing in what. In addition to the visual lack of masculinity in men and gentle curves in women, being overweight will also cause symptoms such as low immunity, osteoporosis and anemia. Many young people, especially men, have been distressed by their difficulties in gaining weight, [clearly eating a lot is not fat]. Compare the weight gain errors and skills introduced below to see if you have done the right thing. Why are you so thin? There are three main reasons for being underweight: Congenital (genetic) factors: Some people are born with higher metabolism than ordinary people, or have low digestion and absorption function, which Read More …