จะเพิ่ม      เพิ่มเกณฑ์มาตฐาน ผู้ชายกับผู้หญิงมีค่า BMI ที่แตกต่างกัน
               นำข้อมูล BMI คนเอเชีย คนยุโรป ว่าแตกต่างกันอย่างไร

อันนี้คือโค้ด
ช่วยทีครับ เพิ่มเข้าไปยังไง บอกหน่อยครับ

#include <stdio.h>

char n[20];
float w,h,BMI;
main()
{
    printf ("\n\t\tWelcome to program calculate BMI \n");
    printf ("\n\n\t\tBody Mass Index Program");
    printf ("Input your name : ");
    scanf ("%s",&n);
    printf ("\n\n\t\tWeight(kg.): ");
    scanf ("%f",&w);
    printf ("\n\n\t\tHeigth(m.): ");
    scanf ("%f",&h);
    BMI = w/(h*h);
    printf("\n\n\t\tHi! %s. You have BMI. = %.2f",n,BMI);
if(BMI>40)
    { printf ("\n\n\t\tyou are very very fat. It dangerous.");
        printf ("\n\n\t\tYou should to eat vegetable and fruit.");
        printf ("\n\n\t\tYou should exercise regulary.");
    }
else if (BMI>35)
    { printf ("\n\n\t\tYou are very very portly.");
      printf ("\n\n\t\tYou should to eat vegetable and fruit.");
      printf ("\n\n\t\tYou should exercise sometimes.");
    }
else if (BMI>28.5)
    { printf ("\n\n\t\tYou are very very plump.");
      printf ("\n\n\t\tYou should to eat vegetable and fruit.");
      printf ("\n\n\t\tYou should mini exercise.");
    }
else if (BMI>23)
    { printf ("\n\n\t\tYou are chubby.");
      printf ("\n\n\t\tYou are healty.");
      printf ("\n\n\t\tYou can eat clean food.");
    }
else if (BMI>18)
    { printf ("\n\n\t\tYou are slim.");
      printf ("\n\n\t\tYou can eat everything.");
      printf ("\n\n\t\tYou should exercise.");
    }
else
    { printf ("\n\n\t\tYou are very very thin.");
      printf ("\n\n\t\tYou should to eat very much.");
      printf ("\n\n\t\tYou should exercise.");
    }
getch();
}