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Read this if you are always tired

7 things people over 45 blame for being tired all the time

Most of the list is wrong. The last one is the one almost nobody checks.

By the VIVANMN team · Updated August 2026

At some point in your late 40s or 50s, tired stops being something that happens to you and starts being something you are. Not ill. Not unhappy. Just permanently running at 70 percent.

If that sounds familiar, you have probably blamed at least four things on this list.

1

A bad night's sleep

The first suspect, every time. But here is the tell: you sleep a full eight hours and still wake up flat. If sleep were the whole story, a good night would fix it. For a lot of people this age, it does not.

2

Just getting older

The default explanation, and the most defeatist one. Ageing is real, but it is gradual. When your energy drops off a cliff over a couple of years, something more specific is usually driving it.

3

Doing too much

Busy is real. But you were busy at 35 too, and you recovered overnight. The difference now is not the workload. It is how slowly the tank refills.

4

Screens and scrolling

Blamed constantly, and fair enough, the late-night scroll does not help. But plenty of people cut their screen time right down and find the tiredness exactly where they left it.

5

Your diet, or low iron

Worth taking seriously. If you are exhausted, a chat with your GP and a blood test are never wasted. But a lot of people do exactly that, get told everything looks normal, and go home with the same tiredness and no explanation.

6

Coffee wearing off

Somewhere along the way, coffee stopped being a pleasure and became infrastructure. If the day does not work without it, coffee is not fixing your energy. It is papering over whatever is draining it.

The one almost nobody checks

7

Your cells are making less energy

Here is what rarely makes the list. Every cell in your body makes its own energy, and to do it, it needs a molecule called NAD. NAD levels fall steadily with age. By your 50s, you are running on far less of it than you had at 25.

Less NAD means every cell makes less energy. Not one bad night. Not laziness. Chemistry. And it explains the pattern the other six cannot: tired after good sleep, tired on quiet weeks, tired despite the coffee.

The fix is simpler than the science

Your body makes NAD from a raw material called NMN. Taking NMN directly gives your cells that supply line back.

That is the whole idea. One 500mg capsule a day. No complicated protocol.

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This page is an advertisement feature for VIVA Pure NMN, published by Viva Research Ltd. Customer reviews are verified reviews collected via Loox and shown word for word; individual experiences vary. Food supplements should not be used as a substitute for a varied, balanced diet and a healthy lifestyle. If you have ongoing tiredness that concerns you, speak to your GP.