Your brain seeks altered states (and that is not unusual) • Drink00

The brain seeks balance—and responds to change

Inhibition, excitation and pleasure

The brain continually adjusts its activity. GABA is one of the central nervous system’s main inhibitory neurotransmitters, while glutamate is its main excitatory neurotransmitter. These descriptions explain signalling roles; they do not provide a simple recipe for a safe or enjoyable high.

Among the systems involved in reward and motivation are:

GABA, which generally reduces neuronal excitability through its receptors;
dopamine, which helps encode motivation, learning and reward;
endorphins and endocannabinoids, which can contribute to pain modulation and the subjective effects of exercise;
glutamate, which supports excitatory signalling, learning and perception.

These systems interact. A feeling of relaxation, pleasure or disinhibition cannot be reduced to one transmitter or one receptor.

Why alcohol can loosen inhibitions

Alcohol changes signalling at several targets, including some GABA-A receptors and NMDA-type glutamate receptors. The effect depends on dose, brain region, receptor composition and the person’s prior exposure. It is therefore more accurate to describe alcohol as a drug with several interacting actions than as a single switch that simply turns inhibition on.

Those actions can contribute to relaxation, impaired judgement, sedation and, at higher exposure, loss of consciousness. A pleasant early sensation does not predict a safe later one.

Alcohol is not a general anaesthetic

Similar targets do not mean identical drugs

Alcohol is sometimes described as an “anaesthetic” because it can depress the central nervous system. That comparison has limits. Benzodiazepines, barbiturates, propofol and inhaled anaesthetics have different molecular targets, doses and clinical uses; general anaesthesia is not produced by one universal GABA-A mechanism.

The same caution applies to glutamate. Nitrous oxide is a medical analgesic and anaesthetic whose actions include inhibition of NMDA-mediated signalling, alongside other mechanisms. That does not make its effects interchangeable with alcohol, and recreational misuse carries serious risks.

Nitrogen narcosis is an impairment, not an alternative

At depth, increased nitrogen pressure can produce nitrogen narcosis. Divers may experience altered perception, euphoria or slowed thinking, but the central concern is impaired judgement and coordination under conditions where mistakes can be fatal. The effect resolves with ascent; it is not a safe way to seek intoxication.

Other ways people describe a shift in state

Exercise, laughter and music

Some experiences can feel rewarding without alcohol. In a 2015 mouse study, wheel running reduced anxiety-like behaviour and pain sensitivity through cannabinoid receptor mechanisms; the researchers explicitly noted that euphoria cannot be studied in mice. That finding concerns one exercise model; it does not show that exercise reproduces alcohol’s pharmacology or has no risks.

Dance, laughter and music can also change mood and social connection. Studies of laughter and music have measured pain tolerance or dopamine release during peak musical pleasure, but those outcomes are indirect or specific to the experiment. They should not be presented as proof that a drink-like intoxication has been recreated.

Meditation, breathing and cold exposure

Meditation and movement may help some people feel calmer or more engaged. Intense breathing and cold exposure can also produce striking sensations, but subjective intensity is not evidence of a beneficial neurotransmitter effect. Hyperventilation can cause dizziness or fainting, and cold-water exposure can place stress on breathing and the cardiovascular system. These practices require particular caution and should never be used in water or near other hazards when they involve breath-holding or rapid breathing.

Sobriety as exploration, not a pharmacological promise

Alcohol’s effects are partly social and sensory: expectation, taste, setting and shared ritual can shape how an evening feels. A carefully made alcohol-free drink, music or a shared activity may support enjoyment and connection, but the result is an experience with its own limits, not a chemical duplicate of ethanol.

Sobriety can therefore include experimentation with food, movement, art, conversation and attention. The useful question is not whether another practice can reproduce every effect of alcohol, but which experiences feel worthwhile without asking a psychoactive drug to carry the whole evening.