Why am I always tired, even after sleeping a full night?

You go to bed at a reasonable hour. You get your seven or eight hours.

And you still wake up feeling like you barely slept.

One of our patients put it this way in her Google review: “I’m as tired when I wake up in the morning as when I go to bed at night.”

If that sounds like your mornings, you’re not imagining it, and you’re not lazy. Feeling tired after a full night’s sleep usually has a reason, and often more than one.

Why doesn’t a full night’s sleep fix my tiredness?

Time in bed and real rest are two different things.

Your body does its deepest repair work in deep sleep. If something keeps pulling you out of it, you can spend eight hours in bed and wake up feeling like you got four.

Sleep is also only one part of your energy. The rest depends on the food you absorb, your thyroid, your stress hormones and how steady your blood sugar stays through the day.

If one of those is struggling, more sleep can’t make up for it. That’s why “get more rest” so often doesn’t help.

What could be making me this tired?

Tiredness can start in several different places. These five are the most common ones we look at.

• Sleep
• Thyroid
• Stress
• Nutrients
• Your gut

Your sleep itself. Stress hormones running high at night, night sweats, reflux after a late meal, or blood sugar dipping overnight can all wake you or keep you in light sleep. You may not even remember waking.

Your thyroid. Your thyroid is a small gland in your neck. Its hormones help set how quickly your body turns food into energy.

When your thyroid runs slow, you slow down too, and one basic blood test doesn’t always show it.

Stress. Years of pressure can throw your stress hormones off. A common result is feeling wired at night and flat by day.

Nutrients. Your body uses iron, B12, vitamin D and magnesium to make energy. If you’re low on any of them, you can feel drained, even on a good diet.

Your gut. Eating well and still exhausted? Your body may not be absorbing your food properly, which can leave you short on energy and mental clarity.

You can read how each of these affects your energy on our fatigue and low energy page.

Why do I crash every afternoon?

The 3pm crash is one of the things tired patients mention most.

Blood sugar is often part of it. When it climbs quickly after a meal and then drops, your energy can drop right along with it.

An illustration of a common pattern, not measured data.

That swing can leave you reaching for another coffee or something sweet. Coffee helps for an hour or so, but it borrows energy from later in the day, and the crash still comes.

If the slump shows up at about the same time most days, pay attention to that. A regular pattern is a useful clue.

Is it just my age?

You may have been told that. Tiredness is common, but common and normal aren’t the same thing.

Your energy is the end result of several systems working together. When one link in that chain is weak, everything after it suffers.

Most of the time, tiredness comes from two or three of these at once. That’s why checking one thing at a time so rarely finds the answer.

What can I do about always feeling tired?

Start by noticing your own pattern.

When are you most tired? Does it follow a meal, a bad night or a stressful week? Do you wake at the same time most nights?

Write it down for a week or two. It will help whoever you talk to next.

It’s tempting to pick up iron or B12 because it might help. But guessing at a supplement is different from knowing what’s low, and why.

If your gut isn’t absorbing well, adding more of something may not get it where it needs to go.

If you take medication, keep taking it as prescribed. Any decision about medication stays between you and your physician.

At Back to Wellness, Dr. Anthony Alphonso has been in practice since 2007. We work alongside your physician, with patients in New York and South Carolina, all from home.

We look at your thyroid, stress, nutrients, blood sugar, gut and sleep together, then build a plan around what we find. Our fatigue page explains how it works.

When to talk to someone

Some tiredness needs a doctor first. Please see your physician or urgent care right away if your tiredness:

• came on suddenly
• comes with chest pain (call 911) or shortness of breath
• comes with weight loss you can’t explain, or fevers
• comes with very low mood or thoughts of harming yourself (call or text 988)

If none of those apply and you want to find out what’s behind your tiredness, book a free 15-minute call.

It’s by phone, and there’s no cost and no obligation. We’ll listen to the whole story and tell you honestly whether we can help.