Coach, I Don't Think it is CNS Fatigue After All

Hi Coach CT, I hope you and all others are well?

I have been implementing the Neural charge workout for around two weeks now and performance vacillates between okay and well blech. I have also implemented the diet and supplement changes that you suggested…

I know that it has been a short while yet, however, sleep quality has deteriorated, concentration and memory ability has also deteriorated as well as a general depressive fog starting to hang over me.

This has led me to wonder if there is not a deeper underlying systemic problem?

I found your post: What Overtraining Is and Isn't and whilst I am not saying I am overtrained, the symptoms you mention there concerning hormones, especially cortisol piqued my interest. I am also wondering if my sympathetic nervous system is not perhaps stuck in the “on” position due to the legio different stressors that are currently in my life…

I would like to ask you if you would have any advice on stress / cortisol reduction?



I wrote an article on my website that might be of interest.

While not directly about your issue it does talk a lot about cortisol and training.

We all want to know the best training program, the best diet, the best supplements. But few people understand the value of training at the best possible time to maximize their results.
A lot of people like to say, “the best time to train is when you can do it”. Or they even think that it doesn’t matter.

Well it does, big time.

When you are a natural trainee, cortisol can be your no.1 enemy when it comes to gaining muscle and losing fat. More specifically having a cortisol cycle that is out of whack can ruin your progress, or hinder it significantly.

What does that have to do with the best time to train? Well training can have a strong impact on cortisol and training at the wrong time could mess up the cortisol rhythm which could have destructive effects on your progress.

Here are some important points to understand about cortisol before we go further with my optimal training time recommendations:

  1. Cortisol’s main function is to mobilize stored energy when facing a stressful situation. This is part of the “fight or flight” response: allowing you to have the energy to either fight or run away. When you need to use a lot of fuel, cortisol will be elevated more.

  2. Cortisol levels also increase when your level of anxiety increases. That’s why mental stress can increase cortisol levels as much as physical stress.

  3. Cortisol, testosterone and estrogen (among other hormones) are fabricated from the mother hormone “pregnenolone”. The more cortisol you need to produce, the less testosterone (or estrogen) you can produce due to a lack of “raw material”.

  4. While acute (short term) cortisol increases can help you lose fat (by mobilizing stored energy) if cortisol levels are constantly elevated the conversion of the T4 (inactive thyroid hormone) to T3 (active thyroid hormone) is decreased. Meaning that if cortisol is constantly elevated, it can slow down metabolic rate making it harder to lose fat and build muscle.
    Low levels of T3 are also associated with low energy, muscle weakness and an increase in muscle aches, among other things.

  5. Cortisol also increases the production of the anti-diuretic hormone. This will increase water retention, making you look fatter than you really are.

  6. Constantly elevated cortisol levels make it very hard to replenish muscle glycogen and build muscle. As such if your cortisol levels are always high you will have “flat” muscles, have a hard time recovering from workouts and building muscle will be a very slow and arduous process.

7.The natural/normal cortisol circadian rhythm should have your cortisol levels high in the morning (when you can wake up without an alarm clock, it is the cortisol spike that does it) and low in the evening/night. The morning elevation of cortisol is like the ignition that gets the car starting. Having lower cortisol levels at night allows you to recover properly.
If cortisol levels are high at night and when you go to bed, it is much harder to fall asleep and even if you do, the sleep is much less restorative.

  1. If you constantly function with high cortisol before going to bed you eventually mess up your cortisol circadian rhythm: it becomes impossible to spike cortisol in the morning; as a result, it’s hard for you to get started in the morning. You often require 30-45 minutes to feel like yourself and often use coffee as a crutch.

The best time to train is as close as possible to the natural spike in cortisol. This means in the morning. Remember that the natural cortisol circadian rhythm has cortisol high in the morning and low in the evening. And training spikes cortisol. So, if you train in the morning and get a cortisol spike from your workout at least it is at a moment when you should have elevated cortisol.

If you train in the evening you are spiking cortisol when they should be getting lower. And over time this could spell disaster for your testosterone and thyroid levels. Not to mention that it will make it much harder to recover from your workouts and will negatively affect your energy throughout the day.

Understand that it’s not the act of training late that is a problem, it is the cortisol elevation that comes with it. And happens at the wrong time of day.

It has also been found that the best times to train when, it comes to performance, are 3 and 11 hours after waking up. How did they find that out? It was a study performed in Russia with Olympic lifters. They tested grip strength at every hour to see the fluctuations. And they found that they had a peak at both 3 and 11 hours after waking up. I’ve done the test myself and it is accurate (my results were the highest at 2 and 10 hours after waking up).

If we consider the above information about cortisol rhythm it means that the best time to train, the one that combines the best hormonal and neurological response, is 2-3 hours after waking up.

I personally wake up at 4:00am and train at 6:30am. Yes, it was hard to do at first, it required changing many habits. But after about 20 days it felt great and natural. Of course, I go to bed at around 9:00pm to get a proper night of sleep.

You could also wake up at 5:00am and train at 7:30 for example.

The worst time to train is the time that doesn’t respect the natural cortisol circadian rhythm. We should have low cortisol levels in the evening, so training in the evening is the worst time to do it. Especially if you go to bed within 2-3 hours.

If we look at the best neurological times to train (3 and 11 hours after waking up) and you wake up at 7:00am it means that you can still have a good performance at 6:00pm. But that still doesn’t respect the optimal cortisol rhythm, but at least you can perform well.
So, when it comes to bad times to train I would say that…

Anything past 6:00pm is really bad

The closer your workout is from your bed time, the worst it is (you don’t want elevated cortisol when going to bed)

Afternoon training, up to 6:00pm, is suboptimal. But you can get decent results if you use strategies to lower cortisol levels after your training.

Remember that it is not the act of training late that is a problem: it’s the elevation of cortisol at the wrong time that can mess up your circadian rhythm.

Considering this some people might actually be able to get away with late training while others might see their body composition regress.

The better someone is at handling stress, the more they will be able to handle late training and still feel okay and get acceptable results. It might not be optimal but they can do it and be happy.

Those who are more naturally anxious when faced with stress will have an enhanced response to any form of stress. So, they will likely come into a late workout with already elevated cortisol levels from their day and then overproduce cortisol even more during the session. Furthermore, it will be hard for these people to bring cortisol level back down when they go back home. These people are your typical hardgainers: those who have a very hard time building muscle. They also tend to be more introverted and of a more anxious/worrisome nature.

Simply put these later guys cannot get away with training late. It will kill their progression and rob them of a lot of energy to get through their day.

Training early, once you get used to it, is also great for neurological performance. The right amount of training will increase dopamine levels which will make you feel more positive, confident, focused and motivated. It will really have a positive impact on the rest of your day. It also increases adrenalin which will give you energy and drive.

The right amount of training in the morning can do wonders for mental and physical performance for the rest of the day and can also be a mood enhancer. I personally feel like crap the days I don’t get my morning session in.

I also believe that morning training has an enhanced effect on body composition; mostly on increasing the rate of fat loss.

Yes, you are.

Okay I’m kidding, but not really.

Training late will never be optimal. Especially if you are more of the anxious type of if you have a stressful job that elevates cortisol throughout the day. Some can get away with it better than others. But “getting away with it” is still far from “optimal”.

You might able to not see any negative impact for a while, especially if you are young. But it will always come back to haunt you.

“But because of my work schedule I just can’t train in the morning”
That is true for some people. If that is your case you should still try to train as far from your bed time as possible. And you should also use nutritional and supplement strategies to help decrease the cortisol response to training.

Here are some of the strategies you can use:

  1. Having a source of rapid energy pre-workout (PLAZMA). This would be either easily absorbed carbohydrates (PLAZMA or SURGE WORKOUT FUEL) or MCT oil. Remember that the function of cortisol when training is to mobilize stored energy. If you have energy readily available then you don’t need to mobilize as much and thus cortisol doesn’t increase as much.

  2. Using phosphatidylserine (600-800mg). I personally use PPS pre-workout and in the evening. I even use it when giving seminars and noticed a drastic difference in water retention an fullness, indicating a lower cortisol level.

  3. Using glycine (5-10g) post-workout and before bed. Glycine is a “neural inhibitor” that helps you relax and thus lower the cortisol response. It will also help you get to sleep after a later workout.

  4. Having carbs in the evening. This will help raise serotonin which will help you relax and lower the cortisol level.

Training early will always be superior to training later, at least once you get used to it. It will give you a healthier, more normal, hormonal cycle and will help you feel better for the rest of your day.

Training in the evening is the worst time to train. The closer to your bedtime, the worst it is. You can use strategies to decrease the negative impact but it can never replace an optimal workout time.

I KNOW that some of you who simply do not want to train early will find dozens of arguments against morning training but physiologically speaking there is zero doubt that training as far from your bed time as possible is better. You can make up all the excuses you want, it will not change the truth.

I’m not saying that you can’t progress while training late. But you are starting with one strike against you.


Very interesting CT

I often train at around after waking at I’ve personally found this OK if doing conditioning (KB’s for example), Explosive training (oly variations) at around 70-75% or Muay Thai/bag/technique work.

I’ve found it difficult to hit my grove with heavy squats, dead-lifts or overhead work (any type of heavy spinal loading in fact) at this time. I generally feel much better doing these in the late afternoon at around

I’m nearly 40 thought - getting old ;0)


It sounds like a trip to the doctor and getting some blood work is in order. Your problem goes beyond the timing of your workouts, and if there’s an underlying medical problem you’ll want to get that addressed.

Hi Coach, WOW, many thanks for the detailed response and the time that it took to post…

Whilst I concede that cortisol may not be the only problem, the more I think about my history, I think that it plays a large part in my current puzzle.

I do tend to fret and fuss even over the small stuff, that’s just the way I am wired. But, I am working on trying to let things slide and not stress over it.

Whilst that is going on in the background, I intend to start a protocol to further reduce stress and “manage” cortisol and hopefully bring the “natural” cycle or pattern back.

If you are so inclined, please feel free to comment:

Will move all “exertion” type of exercise to the AM (I am an entrepreneur so I am fortunately able to move training times around), rotating between Neural charge type workouts and the CT athlete / BB style workout but at reduced poundages at first. I will follow normal workout nutrition (pre, peri & post) and also abandon all thoughts and actions relating to caloric deficits. I will also try to get a solid 3 meals a day instead of IF’ing. CT, is the diet portion more or less correct? Depending on availability & price I will also add PPS pre workout

In order to reduce cortisol later in the day (after 3pm) to try and get to the “normal” cortisol pattern, I will introduce a nature walk, daily at that time, whilst also supplementing with rhodolia at that time (local brand, not sure about efficacy), I will also ensure that at least 5g of Omega 3 as well as some ZMA & glycine is taken at night, with dinner. The walk will ensure that I at least get away from the office…

I will also try to get some more sleep. Easier said than done, but will aim for at least 7 hours during the week.

How does that sound? Barring any tweaks, would you care to venture an opinion on how long it would take to see an improvement in symptoms, notably tiredness?

See CT I agree with all the points you’re making here yet when I look back at my last 5 years of training, the best gains were when I trained in the evening.

Ironcially, morning my strength is lower. And despite work stress, evening workouts I felt much ore aggressive (maybe the adrenaline, work day stress gives a great motivator).

Going into the gym early morning, my body just does not feel as strong.

Although 2-3 hours after waking I feel “most awake” where as 7-10 hours after waking I feel strongest & can tolerate the most volume.

But I’m glad you advocate morning training. It works best with my schedule currently. Funny another coach (menno henselman) has written extensively how evening was ideal time to train due to circadian rhythym (leading to some ridiculous +40% gains or something). It sounds so ridiculous except my own body happened to mirror this experience so I’m not quite sure!

1 hour is not that much so you might need to get neurally activated to perform on the big lifts. It might also be the fact that you are doing both AM and PM training so you do not fully adjust.

And 40 is not that old, I’m 40 too and I have no problem squatting or deadlifting early, but that’s because I’m fully adjusted to it.

Thanks Coach, I appreciate you taking the time to respond

I’ll begin my AM sessions with some explosive work as activation - Maybe power snatches before squats, and heavy KB swings before dead lifts