We further found an association between the minor allele in rs211014 (GABRG2) and higher SRE-scores, linked to dizziness and motor incoordination. Genetic variation in GABRG2 has previously been associated with processes involving motor coordination (alcohol withdrawal, febrile- and epileptic seizures).
Dizziness
Alcohol-induced
GABA dependency
can begin developing rapidly, with acute tolerance or changes in GABA
receptor sensitivity appearing after even a single episode of heavy
drinking. Long-term, chronic consumption, typically defined as heavy
daily drinking (e.g., >5 drinks/day), causes sustained downregulation
of GABA receptors and decreased production, often leading to physical
dependence
within weeks...After
stopping alcohol, it takes at least two weeks for the brain to start
returning to normal levels of neurotransmission, with complete
stabilization often requiring 1 to 5 months... Alcohol Use Disorder: GABA signalling

Caffeine does not "reset"
-Gamma-aminobutyric acid (
)
receptors after alcohol; rather, it acts as an adenosine receptor
antagonist that masks alcohol's sedative effects. While both substances
affect GABAergic systems, caffeine primarily increases alertness,
creating a "wide-awake drunk" effect. It does not speed up alcohol
metabolism or reverse GABA receptor alterations induced by alcohol....
the "gamma" in GABA refers to the position of the carbon atom where the amino group is attached, relative to the carboxyl group...To say a carbon is alpha to a carbon would mean that it is right next to it. To say that a carbon is beta to a carbon would mean it is two carbons next to it. To say that a carbon is gamma to a carbon would mean it is three carbons next to it, which the amino-bonded carbon is, relative to the first carbon.
As a stimulant, caffeine blocks calming adenosine receptors and
decreases GABAergic transmission, which leads to increased alertness,
neurotransmission, and sometimes anxiety... Alcohol increases the effect of GABA (gamma-aminobutyric acid), the
brain's main inhibitory neurotransmitter, by acting as an indirect
agonist on GABA_A receptors.
This enhancement boosts GABAergic neurotransmission, causing decreased
neuronal activity, which results in feelings of relaxation and sedation...
Long-term alcohol use can disrupt GABA networks, reducing the body's
ability to produce GABA naturally, often leading to tolerance and
dependence....The cessation of alcohol in dependent individuals causes a significant GABA deficit,
Once in the organism, ethanol metabolism happens in the liver but also
in the brain due to the presence of alcohol dehydrogenase (ADH),
catalase, and P450 (CYP2E1) in both organs. Such metabolism routes
produce mainly three metabolites: acetaldehyde, salsolinol, and acetate (Gil-Mohapel et al., 2019; Wilson and Matschinsky, 2020).
After reaching the brain, ethanol and its metabolites induce diverse
disturbances such as reduced glucose uptake, increased monocarboxylate
uptake, dopaminergic, GABAergic, and glutamatergic alterations (Peana et al., 2017)....Acetaldehyde in the brain causes euphoria at low doses and plays a vital
role in ethanol’s reinforcing properties, thereby facilitating alcohol
addiction...Acetaldehyde has been shown to stimulate dopaminergic neurons (Melis et al., 2007) and μ opioid receptors (2014)...
"In the absence of alcohol (withdrawal), the GABA activity decreases but
the increased glutamate (as compensation) levels remain about the same
and leading Glutamate > GABA state."
AI says: Alcohol withdrawal induces severe GABA dysfunction, characterized by reduced inhibitory neurotransmitter levels and decreased
receptor sensitivity, causing brain hyperexcitability. This GABA system
impairment, paired with excess glutamate, contributes to symptoms like
tremors, anxiety, and motor instability. While
not explicitly linked to chronic proprioception damage in the provided text, this neuroplasticity, if persistent, can affect cerebellar function,
potentially influencing balance and spatial awareness
Key Aspects of GABA Dysfunction and Withdrawal
- Reduced Inhibition:
Alcohol is a central nervous system depressant that increases GABA
activity; in withdrawal, GABA levels drop below normal, leading to CNS
hyperactivity.
- Receptor Downregulation: Chronic drinking reduces the sensitivity and number of receptors.
- Hyperglutamatergic State:
As GABAergic inhibition declines, glutamate (an excitatory
neurotransmitter) activity increases, leading to withdrawal tremors,
anxiety, and seizures.
-
- Impact on Motor System:
receptors are highly active in the cerebellum, a region responsible for
balance and coordination. Damage to GABA systems can affect motor
control and balance (proprioception)
- Stabilization: Neurotransmitter systems generally require 1–5 months to stabilize after stopping alcohol. https://www.reddit.com/r/stopdrinking/comments/rqidln/was_nerd_perusing_articles_interesting_thoughts/
- Back to GABA. Alcohol, like the benzodiazapenes, not only binds to GABA
receptors: it desensitizes them. For this reason, the most startling
damage to the brain can occur during alcohol withdrawal. What happens is
that the brain, having decreased the sensitivity of its GABA receptors
over time in response to the constant exposure to alcohol, suddenly
displays an excess of activity that can cause damage. This is known as
"kindling," and it's one of the reasons that some cases of alcohol
withdrawal should be medically managed.