via Entertainment Tonight / YouTube

There must be a hundred different ways to determine if someone is healthy. A general practitioner will check your lung capacity, blood pressure, heart rate, BMI, skin color, hair, eyes, and nails to see if you're healthy.

A psychiatrist will examine your mental and emotional states to see if you are healthy.

Our personal health is a complex thing, but many of us simply rely on a number on the scale to see if we're physically fit.

However, being thin doesn't necessarily mean someone is healthy.

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