It’s not uncommon for people suffering from addiction to feel dissatisfied in life in general. But one particularly common complaint is that the experiences and activities that used to make patients happy no longer spark joy in them.
Even after they get started on their recovery journey, they might not feel like themselves again for a while.
If you’re wondering why that is and whether there’s any light at the end of the tunnel, keep on reading. Today’s post is all about the narrowing of joy caused by alcohol and drugs. Let’s find out how addiction can shrink a person’s capacity for happiness.
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What Healthy Reward Pathway Activation Looks Like
The brain is quite complex, and there’s so much that we don’t understand about its functions. That said, one thing we do know is that the different regions in the brain operate through interconnected circuits.
Each circuit contains neurons, which communicate through chemical signals. A neuron simply releases the signal (a chemical neurotransmitter) and the other “catches” it with the proper receptors.
One of these circuits is the dopamine/reward pathway, which isn’t always seen in a positive light.
From doomscrolling to actual substance use disorders (SUD), a sizable chunk of the issues in our societies today is tied to dopamine release from the reward pathway. And yet, not all reward system activation is bad for us.
In fact, our survival depends on these circuits since they drive us to seek pleasure and avoid pain. They also help people mediate suitable responses to environmental stimuli and build healthy daily routines.
Here’s how the system functioned for millennia:
- A human experiences new things that also happen to be beneficial (socializing, eating, procreating, etc.).
- More dopamine is released in the brain. The person feels pleasure, and thus is more likely to repeat this beneficial behavior.
- After the pleasurable event, the dopamine levels return to normal.
So, under normal conditions, the reward pathways are activated to reinforce non-drug-related activities.
While it’s true that addictive drugs can affect how our neurons send/receive signals, they don’t act like natural dopamine triggers at all. The activation in this case is way more intense, rather short-lived, and usually followed by a come-down period.
How the Substance Use-Reward-Crash Cycle Kills Joy
Let’s take a look at how drugs and alcohol compare to normal dopamine triggers.
1. Drugs Hijack the Reward Pathway
One major difference between natural triggers and addictive substances is the amount of neurotransmitters (like dopamine) released. Some drugs flood the brain with high levels of neurotransmitters.
The amount of dopamine released is more than enough to reinforce the substance use. It ends up reinforcing external cues linked to the experience as well.
That’s why someone who has been sober for years might experience cravings simply because they talked to people they used to get high with or returned to an old neighborhood.
2. Dopamine Plunges to Extreme Levels After the “High”
If you recall, we explained how natural reward pathway activations can cause a spike in the dopamine levels. Once the pleasurable event is over, the dopamine level gradually drops until it returns to the normal baseline.
In the addicted brain, however, the dopamine doesn’t return to the baseline after the first euphoria wears off. It might plunge well beyond what’s considered normal. This is called the come-down stage, and that’s usually when the withdrawals start hitting.
Note that some neuroscience sources liken this phase to being in quicksand. Why?
Well, that’s because it pushes people to act desperately (use again) just to get out of the quicksand pit (the withdrawal symptoms). This only fuels the use-reward-crash cycle and makes it harder to kick the addiction habit.
3. Drug Abuse Makes the Brain Less Responsive to Pleasurable Stimuli
Being stuck in the use-reward-crash cycle can physically change how the brain processes and responds to pleasure signals.
Neuroscientists found that the brain tries to adapt to the floods of dopamine caused by drug abuse. And it does so by reducing the number of receptors available for binding with dopamine.
Think of it this way: You’re used to hearing music at a certain level. Suddenly, an extremely loud song starts playing. You tune down the volume to cope with the noise. When the abnormally loud song is over, you won’t be able to hear regular music the same way. Would you?
The same happens in the brain, and the reduction in the receptor density is often high enough to show up on brain scans.
The fewer receptors there are, the less dopamine will be taken up by the neurons. This translates to a weaker sense of pleasure. The person in this case is going to need extreme triggers just to feel any sort of joy.
So, natural triggers (food, sex, games, etc.) won’t cut it anymore. On the contrary, the brain starts treating the addictive substance as something more important than even the most basic needs, like safety.
After a while, even the drugs won’t be enough to cause euphoria. When things get to this stage, the person will no longer use illicit substances to feel the high they were seeking in the first place. They’re technically using drugs and/or alcohol to escape from the withdrawals.
You might be able to notice this change in action if any of your loved ones are heavy smokers.
When they first started the habit, a cigarette or a few puffs from a vape would have been enough to improve focus and elevate the mood. As time goes on, the same person will likely need to smoke way more frequently just to feel “normal.”
Anhedonia and Substance Abuse
Keep in mind that there’s a medical term for losing the capacity for feeling pleasure from positive life experiences. Scientists and healthcare professionals call it anhedonia, and it can be either a total or partial loss of joy.
The condition is often a symptom of some mood disorders and mental health issues like schizophrenia. However, anhedonia is also linked to substance abuse.
Psychiatric research shows that people recovering from addiction frequently experience this lack of joy during their withdrawal phases (both acute and chronic). There’s a correlation between the state of anhedonia and how intense the cravings/withdrawals will be as well.
You can also consider anhedonia a risk factor for relapses among patients recovering from different addictions. After all, if a person in recovery is struggling to feel significant pleasure from regular day-to-day activities, they might be tempted to use drugs or drink alcohol again.
The Rise of the Use-Reward-Crash Cycle in the 21st Century
The reward circuit is something humans have had in their brains for millennia. So, you might be wondering why it’s suddenly such a major concern associated with doomscrolling and addiction. Well, some experts wondered about this as well.
As it happens, the times we’re living in are an important factor. The environment around us has been changing rather rapidly over the past few years. We went from scarcity in triggers to an incredible abundance of things that can light up our reward circuit over and over again.
Nicotine, illicit drugs, alcohol, and slot machines are much more common nowadays, and they’re just some of the triggers around us. Even the seemingly harmless stuff (overly salty/sugary food and social media feeds) can cause surges in our dopamine levels.
We’re also getting exposed to these triggers at young ages. And science tells us that the younger a person is when they start using, the faster and more likely they are to become addicted to the substance.
Neuroplasticity and Brain Recovery With Long-Term Abstinence
So, how long does this reduced capacity for feeling pleasure last? The most important thing to keep in mind here is that addiction treatment is not a cure. It’s simply a way of managing a brain condition.
That being said, long-term abstinence can rewire the brain away from the damage caused by addiction. So, it is possible to reverse this narrowing of joy since it was originally caused by damage to the dopaminergic system. But naturally, it’ll take time and commitment.
According to the Journal of Neuroscience, the density of dopamine transporters can recover (at least partially) after 14 months of abstinence from meth use.
Let Go of Addiction and Focus on the Light at the End of the Tunnel
Both drug and alcohol abuse can damage a person’s health, social life, and emotional well-being in more than one way.
Thankfully, it’s possible to recover and re-experience pleasure from all the things that used to spark joy. The first step is acknowledging that there’s a problem and accepting help.
If someone you love is suffering from a substance use problem, don’t hesitate to get in touch with our consultants. The team at Long Island Interventions is full of experts in confronting, supporting, and guiding people struggling with addictions and behavioral dependencies.
Written by: The Long Island Interventions Editorial Team
Editor: Isaac Adams-Hands
Medically Reviewed by: MedicallyReviewed.com
Published on: November 30, 2025
Updated on: January 13, 2026
