PTSD and Fatigue: Is It Normal to Feel So Tired?

October 3, 2012 Michele Rosenthal

Learn why PTSD causes fatigue. Many with PTSD report always being tired. Then find out what to do about fatigue related to PTSD.

I received an email from a client last week; he was very upset. Usually, he's the kind of guy who likes to travel on the drop of a dime but since PTSD began to control his life, he’s noticed that traveling takes an enormous toll on him.

After even the smallest trip, he wrote, "I have to sleep all the next day. Is this part of the PTSD profile?"

In a word: Yes.

Why PTSD Causes Fatigue

Let’s start with the mind/body connection. While modern medicine preaches the separation of your mind and body (I can’t tell you how many times my doctors said, "Your trauma that led to PTSD happened years ago, that can’t possibly be affecting you now!"), the truth is that your mind is capable of producing 50% more stress than your body can handle.

Think about that: If your mind is producing so much stress that your body can’t handle it, what will your body do? That’s right! Your body will let you know that your entire being is overly taxed. One way to do that is to feel enormously exhausted.

Then let’s add in depression. According to research, people who are depressed are more than four times as likely to experience inexplicable fatigue. Even without the research, I bet you know that from personal experience. You wake up in the morning feeling like the weight of the world is on your shoulders. Or as one client told me yesterday, "The thought of the day is just unbearable." Carrying all of that load is exhausting! PTSD depression is particularly heavy. Often tied to issues that involve the past, present and future, plus topics that have to do with the very core of who you are, depression can weigh you down like cement boots in a swamp of quicksand. It won’t take long before you just feel ready to curl up and take a nap.

Now, let’s get more scientific about it all. Cortisol is the stress hormone you most need to understand. Useful during a trauma, cortisol helps desensitize us so we feel less pain, increases short-term memory function, and acts as a quick energy boost. All good things, right? But here’s the kicker:

When present in higher levels for a prolonged period of time cortisol can be responsible for memory loss, fatigue, and reduced serotonin levels. Typically high during and immediately after trauma, some studies have shown that cortisol levels actually decrease later in the presence of PTSD. (We’re all unique and different so the only way to know how cortisol might be affecting you is through the results of a quick blood test done at any lab as prescribed by your doctor.)

Scientifically speaking a little further: The adrenal system processes stress hormones, including cortisol. When there’s an overload on the adrenal system a survivor might experience a variety of symptoms such as fatigue, exhaustion and an overload of stress. While the medical community does not recognize adrenal fatigue as an accepted medical diagnosis, the symptoms can’t be denied. (Like cortisol, the effects of adrenal overload can be identified through a blood test.)

Whatever is going on with you – be it emotional, mental or physical in origin – the bottom line is that fatigue (and often inexplicable fatigue) very often accompanies symptoms of PSTD. If this is the case for you, be your own best friend.

Give yourself the rest your body calls for. Reduce the amount of running around and other over-stimulation you allow. Also, reach out to your personal and professional support system to help develop a schedule that both honors and respects the fatigue while also trying to reduce and even eliminate it through proper PTSD treatment.

Michele is the author of Your Life After Trauma: Powerful Practices to Reclaim Your Identity. Connect with her on Google+, LinkedIn, Facebook, Twitter and her website,

APA Reference
Rosenthal, M. (2012, October 3). PTSD and Fatigue: Is It Normal to Feel So Tired?, HealthyPlace. Retrieved on 2024, June 25 from

Author: Michele Rosenthal

In reply to by Anonymous (not verified)

August, 11 2015 at 10:44 pm

julie..what have you done..this is 2 years old BUT it's 2 years for me and i am the same way? this is not a life is it?

In reply to by Anonymous (not verified)

September, 5 2016 at 11:42 am

OMG darling I am so sorry.

In reply to by Anonymous (not verified)

July, 31 2018 at 4:48 pm

I'm sorry, my brother died from an overdose 8 years ago and I still miss him so much. It took me about until now to get over it, I went to a grief counselor and lowered my drinking helped a lot. He wouldn't want you to suffer, and if you ever need anyone to talk to let me know. No understand the pain and suffering unless they went through it also.

Christine Hodgson
October, 9 2012 at 8:33 am

I always thought the reason my partner was always in bed asleep was coz he was a lazy a** h*le. I do know he has PTSD but didnt know it was the tired factor aswell, now i know this i wont go on at him as much,wont stop me completly but a little.

In reply to by Anonymous (not verified)

Michele Rosenthal
October, 9 2012 at 8:53 am

@Christine -- From the outside PTSD can look lazy for sure! So much of what goes on during this Invisible Illness is not something others can see or understand. While as a partner it's good to motivate and inspire someone to do the work of recovery and living, it's also fair to recognize the limitations that PTSD coping puts in place. Sounds like you're off to find a good balance!

October, 6 2012 at 1:05 pm

Thank you for writing about this! I never knew about it, and that is probably a huge contributor to my constant fatigue as I suffer from PTSD as well as a few other things. Is there any way you know of to help with this type of fatigue? It gets in the way of my studies, and that's without the coping mechanism I have of falling asleep when I don't understand a question on homework. Heh...
But thank you - again! I really appreciate your work to help others. :]

In reply to by Anonymous (not verified)

Michele Rosenthal
October, 7 2012 at 5:15 am

@Chelsea - I think the best way to deal with the fatigue is to deal with the source of it. Namely, PTSD. How are you approaching your PTSD recovery? On a coping level, I would say to deal with the fatigue by building in time for naps but even as I write that I know that allowing yourself to sleep won't change the coping mechanism of wanting to when your brain gets overloaded, which it can quite easily when it's already coping with so much. Which brings me back to my original question! How are you approaching your PTSD recovery? Relieving the exhaustion will come from relieving the stress that PTSD creates. There are many treatment options, a sampling listed here: If you're in college they usually have counseling services that are free/low cost to students....

October, 3 2012 at 1:56 pm

Great article. Definitely answered a lot of questions. If you don't mind, I will be sharing the link.

In reply to by Anonymous (not verified)

Michele Rosenthal
October, 3 2012 at 2:07 pm

Hi @tiredfiremedic! Fancy seeing you here. :)
Please DO share the link. The more we all know and understand the more quickly we can move toward feeling better.

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