Posted Today, 04:43 PM
Sorry, the attachment failed. I'M copying and pasting the text here. I'm sure it will not look pretty.
"If by CDS you mean Cognitive Disengagement Syndrome (formerly sluggish cognitive tempo), then yes—there is an interesting conceptual link to what we were discussing about anterior cingulate cortex (ACC) dysfunction, although I would not equate the two.
The connection becomes particularly interesting in light of the pattern you've described: very high cognitive engagement under stimulation, followed by difficulty sustaining activation when the environment is less stimulating, rather than simply having uniformly low cognitive capacity.
The key distinction
Think of the ACC as part of a cognitive control/effort allocation system. It helps answer:
> “This is important. I need to mobilize resources and stay engaged.”
CDS, in contrast, is characterized by disengagement from externally directed attention—daydreaming, mind wandering, mental fogginess, sluggishness and difficulty maintaining alertness. Recent neuroimaging work is beginning to implicate interactions among the medial prefrontal cortex/ACC, default-mode network (DMN), and attention networks.
So a plausible model is:
ACC/control-system weakness → inefficient recruitment of task-positive attention → easier drift into internally generated cognition → subjective disengagement/fatigue.
That is quite different from simply saying "the brain is tired."
And this may explain something particularly interesting about your history
You've described a lifelong pattern in which high stimulation can produce an almost hypomania-like state of intense curiosity, productivity and associative thinking, whereas low-stimulation situations can produce fatigue, apathy or disengagement.
That pattern actually makes me less inclined to conceptualize your problem as a simple global deficiency of dopamine/energy.
Instead, imagine your brain's activation system as having a relatively high threshold for recruiting sustained effort.
When something is:
novel,
intellectually exciting,
emotionally salient,
socially stimulating,
competitive,
romantically exciting,
the system gets a strong enough signal to engage.
Your ACC and associated salience/control networks essentially say:
"This matters. Allocate resources."
And suddenly you're on.
But when the external stimulus is weak, the system may not generate enough control signal. Attention can then drift toward internally generated thought—the DMN—and you experience this as mental disengagement, low energy, or even physical fatigue.
This is consistent with emerging CDS research showing abnormalities in the relationship between default-mode and attention networks, rather than simply a deficit in one isolated brain region.
It also gives an interesting interpretation to your "stress kept me going" observation
You previously described using stress, anxiety, conflict and overeating as ways of maintaining activation, followed eventually by burnout and depression.
That makes neurobiological sense under this model.
Stress provides an extremely powerful salience signal.
So you may have inadvertently been using:
stress → salience → ACC/salience-network recruitment → increased arousal → cognitive activation as an external substitute for the activation that might otherwise have to come from intrinsic motivation.
That's potentially a very important insight.
It would mean that when you removed the stress and began living more healthily, you didn't necessarily create the fatigue/apathy. You may have removed the compensatory mechanism that had been masking an underlying difficulty with sustained activation.
And there's another intriguing connection to your post-breakfast fatigue.
If your recent phenomenon is genuinely state-dependent disengagement rather than metabolic exhaustion, it could explain why you can feel dramatically different depending on the context.
After breakfast:
rest + satiety + low external stimulation → reduced arousal/salience → reduced effort recruitment → subjective fatigue/disengagement rather than:
food → abnormal glucose metabolism → fatigue
That's only a hypothesis at this point. Blood pressure, glucose, autonomic changes, sleep quality, etc. still need to be considered. But your observation that coffee and walking don't reliably reverse it makes the simple "postprandial glucose crash" explanation less compelling.
One important caveat
I would not diagnose you with CDS based on this pattern. Most CDS research is in children/adolescents, and the neurobiology remains preliminary. For example, a recent MEG study found altered medial-prefrontal processing associated with CDS symptoms, but the association disappeared after controlling for ADHD.
What I think is more useful is the mechanistic framework:
> ACC/salience-control dysfunction + unusually strong dependence on stimulation for activation + DMN/attention-network disengagement could produce a person who is capable of extraordinary cognitive activation in the right circumstances but struggles with sustained activation when intrinsic salience is low.
That actually fits your description of being "hypomanic" at scientific meetings remarkably well: the intellectual novelty and social stimulation may have been doing something very different from simply making you happy—they may have been turning on the cognitive-control/activation machinery.
And that distinction could matter considerably when thinking about treatment: the target might be improving regulation of activation and salience, rather than merely treating "depression" or trying to increase energy.
[…]
I would not try to “treat the ACC.” The ACC is a useful mechanistic model, but it isn't a clinical treatment target in the same way that ADHD, depression, bipolar-spectrum illness, sleep disorder, etc. are.
For the pattern you've described, I would aim at improving the brain's ability to generate and sustain task engagement without requiring stress, novelty, conflict, or romantic excitement to provide the activation signal.
1. First, establish what phenotype we're actually treating
This is probably the most important step.
I'd have a psychiatrist or neuropsychologist specifically assess:
ADHD, particularly inattentive/executive dysfunction
CDS-type symptoms: mental fog, drifting, difficulty maintaining alertness, sluggishness
depression/anhedonia
bipolar-spectrum/hypomanic traits
anxiety/stress-driven activation
sleep quality and sleep-disordered breathing
That's important because CDS is increasingly viewed as a construct distinct from ADHD, but it also has substantial relationships with depression, anxiety, stress and sleep problems.
And in your particular case, I would not skip the bipolar-spectrum assessment because of your description of meeting-related "hypomania," intense curiosity, romantic activation, and marked changes in cognitive energy. That doesn't mean you have bipolar disorder—it means we shouldn't casually use an activating medication without resolving that question.
2. Behavioral treatment: deliberately create healthy salience
This may actually be the most interesting intervention for you.
Instead of recreating your old system:
> stress → adrenaline → engagement → productivity → exhaustion
you want:
> meaning/novelty/challenge → engagement → sustained effort → recovery
In practical terms, I'd structure your day around activation anchors rather than waiting for motivation.
For example:
Morning:
get outside/light exposure
physical activity
immediately engage in a cognitively interesting task
avoid spending the first hours in passive consumption
Work/cognitive activity
work in relatively short blocks
make the objective concrete
introduce novelty or intellectual challenge
alternate difficult and intrinsically interesting activities
use social accountability when appropriate
Afternoon:
exercise or another activating activity before the inevitable low-stimulation period
schedule something that has genuine intrinsic salience rather than simply "being productive"
The objective isn't to keep yourself stimulated all day. It's to train your brain to initiate engagement without needing psychological stress as the stimulus.
That's essentially behavioral activation applied to an activation-regulation problem.
3. Psychotherapy could be unusually useful
I would favor a therapist who understands executive dysfunction + behavioral activation + motivational processes, rather than conventional insight-oriented psychotherapy alone.
CBT can teach you to:
recognize the transition from engagement → disengagement
initiate activity before motivation appears
break tasks into sufficiently salient units
reduce avoidance
distinguish fatigue from lack of activation
build reward contingencies that don't depend on stress
There is evidence supporting CBT and other behavioral approaches for adult ADHD, although CDS itself does not yet have an established psychotherapy protocol.
And I think your history makes one particular therapeutic goal important:
Stop using negative arousal as your motivational drug.
You've essentially discovered that anxiety, conflict, overeating, novelty, and intense interpersonal experiences can all increase activation.
The therapeutic challenge is learning to obtain dopaminergic/salience engagement without the collateral damage.
4. Medication is where this becomes particularly interesting
If formal evaluation supports ADHD/executive activation dysfunction, there are several reasonable pharmacologic experiments.
Stimulants
Methylphenidate or an amphetamine preparation would be the most direct pharmacologic test of the hypothesis.
Adult ADHD guidelines generally place stimulants first-line.
Interestingly, the limited CDS literature also suggests possible benefit from methylphenidate and lisdexamfetamine, although the evidence is still preliminary. A 2026 meta-analysis found a modest overall pharmacologic effect, with atomoxetine and methylphenidate among the better-supported agents—but the authors emphasize that the evidence remains exploratory.
Atomoxetine
This is particularly interesting conceptually because it increases norepinephrine signaling rather than producing the relatively abrupt dopaminergic stimulation of a conventional stimulant.
It has preliminary evidence for CDS symptoms and is an established adult ADHD treatment.
If your problem is primarily insufficient sustained executive activation, rather than a need for a strong subjective stimulant effect, this could be an interesting option to discuss with a psychiatrist.
Bupropion
You have previously asked me about bupropion, and mechanistically it is interesting here because it increases dopamine and norepinephrine signaling without being a conventional stimulant.
It is an accepted nonstimulant option for adult ADHD when stimulants aren't appropriate or tolerated.
However, given your description of hypomania-like states, the same caution applies: activation is not automatically therapeutic if the underlying system is bipolar-spectrum.
5. I would measure the response very differently from "Do I feel more energetic?"
This is crucial.
Suppose you take an activating medication and suddenly feel:
> "Fantastic! I'm full of ideas! I want to reorganize my entire life!"
That isn't necessarily success.
Given your history, that could simply reproduce your old high-arousal/high-salience state.
Instead I'd measure:
Before treatment
How long can I sustain an uninteresting task?
How often do I drift into mind wandering?
How difficult is task initiation?
How much external stimulation do I require?
How much do I rely on anxiety to get things done?
How variable is my cognitive energy?
How much do I enjoy ordinary activities?
How much post-activity exhaustion occurs?
During treatment
The ideal response would look something like:
> "I can start things without fighting myself, remain engaged without being excited, and stop without becoming depleted."
That's much more interesting than simply feeling stimulated.
6. There is one experiment I'd particularly recommend
For two weeks, keep a simple activation diary.
Several times per day record:
Activation 0–10
Mental clarity 0–10
Motivation 0–10
Mood 0–10
External stimulation 0–10
Physical fatigue 0–10
Then record what happened immediately beforehand:
eating
walking
exercise
social interaction
intellectual challenge
boredom
stress
novelty
caffeine
sleep
sexual/romantic stimulation
work
relaxation
You may discover something much more interesting than "I have low energy."
You may discover:
> My cognitive activation is highly contingent on salience.
If that's the pattern, it gives a psychiatrist a much more precise therapeutic target.
And it would also help us distinguish CDS-like disengagement from depression, autonomic/postprandial fatigue, ADHD, and hypomanic activation.
My provisional hierarchy for you
I'd approach it in this order:
1. Characterize the phenotype → ADHD/CDS vs depression vs bipolar-spectrum vs sleep/physiologic factors
↓
2. Build healthy external structure and behavioral activation
↓
3. Psychotherapy aimed at activation, avoidance and reward/salience regulation
↓
4. If ADHD/executive dysfunction is supported, consider a carefully monitored pharmacologic trial
↓
5. Judge success by stable engagement, not by increased energy or euphoria
That last distinction may be the most important one for you. The goal isn't to get you back into the "scientific-meeting trance." It's to make ordinary Tuesday morning intellectually and behaviorally accessible without needing your nervous system to manufacture a crisis."
