Still Tired After 60? Your Blood Work May Have Answered the Wrong Question

I recently had my annual physical and after all these years, I started to detect a rhythm. I fast overnight, get weighed, roll up a sleeve, then wait. Usually, the answer arrives as one line in the portal. All results within normal limits.

That is good news and I take it as such. But there are times when I read that line and something in me does not settle, because I did not come in worried about my numbers. I came in because I have been tired since spring, and the page says nothing about it.

Sometimes normal is the whole answer, but not always. There is a question about iron the report does not answer, and after menopause it is the more useful one.

What Puts It on the Radar

Mostly, it feels like tiredness even after a good night’s sleep. With it comes the fog, more hair in the brush than there used to be, and a dull mood.

Every one could be a thyroid, poor sleep, a medication, B12, or a low patch that has lasted too long. The list does not point at iron. It points at about nine things at once.

So, it is not true that if we listen closely enough our symptoms will name the missing test. They can only tell us our question has not been answered.

Except for one thing.

Ice. Not enjoying a cold drink but craving it and chewing through cups of it. It has a name, pagophagia. In a 2013 blood donor study in the journal Transfusion, it showed up in 2% of women whose iron was fine and 13% of those whose stores were lowest, and it happens with or without anemia. It also lifts fast. In a companion study, donors given iron said the craving faded within a week and was gone in two.

Most of us will not have that sign, and its absence proves nothing. But hematologists writing in the American Journal of Hematology argue the question belongs in any history taken for low iron, precisely because it is so often left out. The test was not wrong but the question was never asked.

Why This Is Different After 60

Iron’s most important job is carrying oxygen, and it does that inside our red blood cells, as part of a protein called hemoglobin. That is a number on the blood count.

That delivery can never be interrupted. We last weeks without food and days without water, but only minutes without oxygen.

Most of our iron sits in those red cells. The smaller amount held in reserve is what ferritin measures, and when we lose more than we take in, that is what drains.

So the two tests answer different questions. Hemoglobin asks whether payroll went out this month. Ferritin asks what is left in savings. A business can make payroll for a long time while emptying its reserves, and a normal count with no ferritin beside it says nothing about the second question.

That makes hemoglobin a late signal. Long before it moves, the reserve has been paying for energy production, thyroid function, mood, and hair. The body spends how we feel long before it spends how we survive.

After menopause, the expectation changes. For most of our adult lives we lost iron every month. When that stops we should be gaining ground. Ferritin in women rises after menopause toward the levels men carry, often by two to three times. A 2025 study following nearly 1,900 women found the climb begins around the final period and continues after.

So the better question is not whether our number sits inside the printed range. It is whether it climbed the way it should have.

The Number Nobody Mentions

Labcorp notes on its own page for the test that ferritin is not sensitive at the low end, and that higher cutoffs may suit some groups. The bottom of that range is built to catch severe depletion, not to tell us whether our stores are where they should be.

Two numbers are in circulation. 15 is the official cutoff, used by the World Health Organization and the Centers for Disease Control and Prevention. About 33 is where CDC researchers, publishing this year in an American Society of Hematology journal, found shortage begins for men and for women past menopause, by looking for where the blood count starts to slip.

In plain terms, a result can be labeled normal while still sitting below where iron shortage may begin for women our age.

That CDC study used data from 1988 to 1994, the last national survey measuring everything the method needed. And it is research, not policy. CDC guidance still says 15. The authors work there; that is not the same thing.

That figure is also a population average, not a line drawn for any one of us, and ferritin can read higher than our true reserve when inflammation is in the picture. I have written the fuller version, with sources, at Proactive Health Labs, in “Why Your Hemoglobin Can Be Normal While Your Iron Stores Are Empty.”

What to Ask for

So how do we bring this to a doctor without panicking? This is where Feel-Pause-Act does its work.

Feel the mismatch when the page says normal and the body disagrees and notice the small detail we have ignored as too trivial to mention. Feeling is information, not a verdict.

Pause long enough to find out what was measured. Was ferritin ordered, or only the hemoglobin? Was that count normal or low? Those two answers put us in very different conversations.

Act by bringing the specific detail rather than the general complaint. “I am exhausted” invites a shrug, and after 60 it invites the word aging. “I have been chewing ice for a year, and my ferritin has never been checked” invites a test.

Worth asking:

• “Was my ferritin checked, or only my blood count?”
• “Mine came back at this number. I understand shortage may begin higher than the standard cutoff after menopause. Where does mine sit?”
• “My ferritin did not climb after menopause the way I understand it usually does. Is that worth looking into?”
• “What else might explain how I’m feeling?”

Low mood and poor sleep account for more tiredness at our age than any mineral.

And What Not to Do

More testing is not automatically better care. Chasing every marker turns up false alarms and findings that lead nowhere, plus worry that leaves us feeling worse. When a good doctor holds off, that is protection.

Some things should never be filed under aging and waited out. Unexplained weight loss, blood in the stool or black stools, new breathlessness or chest pain on exertion, fainting, escalating pain, or a lasting change in bowel habit warrant a prompt call.

Feeling tired is not a diagnosis. But after menopause our iron reserve should have been climbing, and if it did not, that is a fair question to put to someone even when the report says we are fine.

Let’s Have a Conversation:

Have you been feeling tired with no particular reason? Who have you shared this with? Have you and your doctor done anything to investigate the cause?