• BMI is a measurement of a person’s leanness or corpulence.
• Calculate BMI value by weight and height .
• Use the “Metric Units” tab for the International System of Units, kilogram and meter.
• BMI = weight(kg)/height^2(m)
• BMI unit is kg/m^2

• BMI value categorize a person into underweight, normal weight, overweight, or obese
  depending on what range the value falls between.

BMIrange<-data.frame("Catagory"=c("Underweight","Normal","Overweight",
                                    "Obese Class1","Obese Class2",
                                    "Obese Class3"),
                     "BMI range"=c("< 18.5","18.5-25","25-30",
                                     "30-35","35-40",">40"))
BMIrange

##       Catagory BMI.range
## 1  Underweight    < 18.5
## 2       Normal   18.5-25
## 3   Overweight     25-30
## 4 Obese Class1     30-35
## 5 Obese Class2     35-40
## 6 Obese Class3       >40

• High blood pressure
• Stroke
• Coronary heart disease
• High blood lipid level
• Mental illness i.e. depression, anxiety

• Malnutrition, vitamin deficiency, anemia
• Osteoporosis
• Immune defect
• Growth restriction