Why "Normal" Isn't Always the Same as Healthy

Normal is a statistical statement. Healthy is a functional one. We use the words interchangeably, and it causes more confusion than almost any other language problem in health.

Persistent afternoon fatigue is normal. Waking with a stiff neck most mornings is normal. Low back pain in the third trimester is normal. Headaches once a week in a nine-year-old is, statistically speaking, not unusual. None of those things are evidence that a body is functioning well.

Where the word does useful work

I want to be fair to it. Being told something is normal can be genuinely reassuring, and unnecessary alarm has real costs. Not every variation needs intervention, and plenty of what parents worry about resolves on its own.

The distinction is whether the reassurance comes before or after an examination. Normal after looking is information. Normal instead of looking is a dismissal wearing a lab coat.

A better set of questions

• Is this common, or is this optimal? They are different questions.
• Has anyone actually examined this, or has it only been categorised?
• What would I expect this to look like if it were functioning well?
• Is this stable, improving, or slowly getting worse?

That last one matters more than people realise. Slow decline is very easy to normalise, precisely because each week resembles the one before it.

What I want for the families I work with

I want them to hold a higher standard than average and a lower level of anxiety than the internet encourages. Those two things are compatible. The bridge between them is understanding — knowing enough about how your body works to tell the difference between a variation and a signal.