Weighing too little can contribute to a weakened immune system, fragile bones and feeling tired. Being underweight could be a sign you’re not eating enough or you may be ill. If you’re underweight, please see a doctor for medical advice.
Measuring your waist is a good way to check you’re not carrying too much fat around your stomach, which can raise your risk of heart disease, type 2 diabetes and stroke.
You can have a healthy BMI and still have excess tummy fat, meaning you’re still at risk of developing these conditions.
To measure your waist:
Find the bottom of your ribs and the top of your hips.
Wrap a tape measure around your waist midway between these points.
Breathe out naturally before taking the measurement.