Kurtosis theory is probably the best laid out from the various discussions over the years about the histamine cortisol neurotransmitter connection. I wonder if we could post it on the POIS Wikipedia talk page since its a medical theory (and a damned well written one).
Thanks Defsync,
Here it is below. Reads very well and seems to make some scientific sense. I think he has a science background. Unfortunately, I don't understand it all, but hopefully researchers, Kurtosis or others with science knowledge will read and comment/update this.
Re: Testosterone
? Reply #33 on: November 10, 2012, 05:23:18 PM ?
From Forum Contributor Kurtosis.
Here's a short theory of POIS.
1) A genetic defect in a methylation gene causes an inefficient homocysteine to methionine cycle.
2) Depending on the level of inefficiency, the sufferer will be fine until they encounter puberty or become older and suffer from some illness which taxes the immune system.
3) Up until the point of the first POIS O the sufferer may feel a bit tired or less active than usual but the first POIS O will come as a shock as it's the first time the body has to dispose of a substantial amount of histamine that it's impaired methylation simply cannot handle.
4) Once POIS starts, the sufferer has high levels of histamine that are not being effectively deactivated (increasing their libido and frequency of ejaculation) and impairments in the production of other neurotransmitters (making them slow down and feel depressed).
5) the High-histamine state requires the body to produce more cortisol to control inflammation. The sufferer has allergies etc. and wonders what the problem is but over time they're body becomes weaker.
6) The cortisol produced in (5) steals the raw ingredients for other hormones (including testosterone), producing symptoms of hypogonadism despite no obvious testicular malfunction or adrenal tumour. It's possible that persistent adrenal fatigue may increase the natural wear + tear on the cells of the pituitary gland which may lead to tumours but that's a side issue.
7) The body also produces adrenaline to cope with high levels of cortisol. Again, this contributes to mental and physical burnout. The POIS sufferer now has chronic adrenal fatigue and may feel "wiped out", being unable to deal with even normal stresses in every day life.
Both the reduced methylation and cortisol steal in the previous points, reduces the production of neurotransmitters. The brain also has too high a histamine load and a negative feedback loop is created such that the brain runs in a suboptimal state with too high levels of histamine and too low levels of serotonin. This leads to persistent feelings of anxiety, even when the sufferer believes they are not in POIS. Indeed, over time it becomes more difficult for the POIS sufferer to figure out when they are in in POIS or out of it. The state of weakness, fatigue and confusion becomes more persistent.
9 ) The POIS sufferer never recovers their former state of wellbeing with adequate histamine clearance and adequate methylation of neurotransmitters UNLESS they manage to kick start their methylation cycle.
Thanks to cheap DNA testing we can actually find out if we have polymorphisms (basically mutations) of our methylation genes. My guess is that we all have methylation issues. They may not be the same issue but they're similar enough to produce a major problem when we process histamine. The inability to clear histamine quickly and the high levels we experience daily would lead to the symptoms of POIS but they would be a result of other issues.