How to fix if statement? [duplicate]

This question already has an answer here:

• C: What does if(a<b<c) do? [duplicate] 3 answers

Regardless of the value for BMI, it always prints "You're BMI shows you are very severely underweight". Whats wrong with the code?

I've tried many things.

{
float weight;
printf("\nPlease enter your body weight in Kgs: ");
scanf("%f",&weight);

float height;
printf("\nPlease enter your height in meters,N: ");
scanf("%f",&height);

float bmi = weight/pow(height,2);

printf("Your BMI is = %.2f.\n",bmi);

if (14<=bmi<15) {
  printf("You're BMI shows you are very severely underweight.\n");
}
else if (15<= bmi <16) {
  printf("You're BMI shows you are severely underweight.\n");
}
else if (16<= bmi <18.5) {
  printf("You're BMI shows you are underweight.\n");
}
else if (18.5<= bmi <25) {
  printf("You're BMI shows you are a healthy weight.\n");
}
else if (25<= bmi <30) {
  printf("You're BMI shows you are overweight.\n");
}
else if (30<= bmi <35) {
  printf("You're BMI shows you are Obese class one.\n");
}
else
  printf("You're BMI shows your a fat bastard.\n");

printf("end");
}

Expected: If i got a BMI of 33, I would expect it to print "You're BMI shows you are Obese class one." Actual: It prints "You're BMI shows you are very severely underweight."