Why We Use "Output" Instead of ON/OFF

There is a wide stretch between ON and OFF. Most of what a clinic visit needs comes from that stretch.

In the graph

Response through the day
Reference curve, for comparison
Time a dose was taken

An illustration generated for teaching. The dotted line is a reference curve for comparison and does not stand for normal.

Recording medication response by splitting it into just ON and OFF has been used for a long time. It’s simple, and easy to put into words. But there is a stretch this approach doesn’t capture well.

The graph above is an example. The solid line does rise, but it stops at about half height and comes back down from there. If you had to pick one of two boxes for this day, neither one fits well. It’s neither no effect at all nor the usual full effect. So a day like this either gets left out of the record entirely, or gets marked toward one side on a whim, and later becomes unreadable.

Recording by degree keeps this day intact, as it actually was. Once a single peak number accumulates over several days, you can see how many times it was low, and at which dose. Measuring, not choosing — that’s why we use the word “output.”

It also matters that you don’t have to judge it. You don’t have to decide for yourself whether right now is a good state or a bad one — just record how much, and the curve will show you, later, where that moment stood.

People often put it like this

It's hard to say whether it's good or bad
It feels like only half the dose worked
It's not that it switches on and off — it rises and falls gradually
I didn't know which one to mark, so I just skipped it

Why this can happen

Below are factors often discussed alongside this pattern. This is not a list of confirmed causes, and more than one is often in play at once.

The real change is a curve, not a step Medication response doesn't switch on and off like a light. It rises, holds, and comes back down. Splitting it into two boxes flattens this process into two single points.
The stretch that fades away matters most Whether you're still rising, whether you've risen but not as high as usual, or whether you're declining are three different situations. Splitting into two boxes crams all three into one.
Recording stops right at the ambiguous moments If you have to pick one of two options, an ambiguous day just doesn't get recorded at all. But those are the days that come up most often.
You need a height on record to compare Whether today's peak was lower than last week's is something you can only know if it's written down as a number. "Good" or "bad" can't be compared that way.

Try recording this for a few days

Where you are right now Put your best-moving moment at the top and your hardest moment at the bottom, and record where right now falls in between.
If you're unsure, just mark it in the middle Being unsure is information too. You don't have to force it toward one side or the other.
One reference movement Pick one everyday movement — like walking to the kitchen — and you'll be using the same yardstick every day.
The day's highest and lowest points These two points set the top and bottom of that day's curve. It's best not to miss them if you can help it.

What you could show your care team

A record is material for describing your situation. Decisions about which medication you take, at what dose, and at what time belong with the clinicians who look after you.

Frequently asked questions

My standard for choosing a number keeps shifting.

That's common. Picking one reference movement makes it much steadier. If you reframe it as "how was that movement today," you'll end up using the same yardstick each time.
Is this a number that gets compared against other people?

No. It's a comparison within yourself. Think of it as a ruler that measures the same person's today against their own last week.
Does it need to be precise?

It doesn't. Recording with the same yardstick over several days is worth far more than getting it exactly right once.