A major dopamine hit from social media use comes from unpredictability—not knowing if the content users post or share will get the 'like' from other users, triggering cycles of anticipation similar to those experienced with a slot machine.

Social media addiction, though not a clinical diagnosis, refers to the idea that infinite scroll, notifications, and algorithms override one's ability to stop using them.

TikTok intentionally keeps users scrolling, something researchers have found makes it more addictive than other short-form video platforms.

Social psychologist Jonathan Haidt, author of 'The Anxious Generation,' contends that children are losing the ability to pay attention as they spend half their lives perusing social media content designed to hook them.

Social media platforms benefit not just from ensuring they have satisfied users, but also from the personal data they scoop up and can then sell to online advertisers.

Our phones can provide a dopamine hit because of our positive associations with them, which feeds into what some psychologists call social media addiction.

TikTok's personalized algorithm activates the brain's reward system

A 2025 Washington Post study found that 75% of the TikTok users it studied nearly doubled their time spent on the app within a month. Experts in design and psychiatry say this is due to the app's interface and algorithm, which, after learning about the user's preferences, recommend videos more likely to activate that person's dopamine reward system than non-personalized suggestions.

Fame can trigger addictive, drug-like highs in the brain

Differences in the type of fame, such as movie stardom, sports, and internet virality, can produce varying degrees of dependence on individuals based on their age and background. Some individuals—particularly children—can develop drug-seeking behavior as they pursue continuous dopamine spikes if they lack an existing sense of fulfillment from elsewhere.

The first social media platforms date back to the late 1990s, and their algorithms were typically chronological, with entities like MySpace and Facebook feeding users content from the most recent posts to the oldest.

There’s a psychological explanation for ‘FOMO,’ or the fear of missing out

This video breaks down FOMO—what it is, how it works, and why it happens—showing how social comparison and uncertainty trigger anxiety that pushes people toward risk-taking and constant checking behaviors.

Why TikTok's algorithm is likely driven by what you linger on

While the inner workings of the engine driving the vast majority of the app's engagement remain a secret, it is understood to rely heavily on what content users spend the most time watching rather than swipe past. Experts believe the app can develop user profiles robust enough for its algorithm to consistently match engaging content to in as little as two hours.

Aimed at increasing user engagement, social media algorithms will intentionally show content in feeds that is misaligned with users' beliefs because such content is more likely to be commented on.

Excessive social media use is linked to feelings of increased isolation, mental health declines, increased stress and general dissatisfaction among teens.

Addictive drugs can cause dopamine levels to become ten times higher than normal.

As thousands of lawsuits proceed against social media companies for alleged harm, social psychologist Jonathan Haidt lays out the seven main arguments for holding social media companies legally responsible.

Frictionless online gambling platforms accelerate compulsive behavior

As of late 2025, as much as 95% of bets are placed online, where "always on" betting and a variety of formats, such as prop bets and parlays, encourage users to keep participating. Experts warn that the normalization of gambling through advertisements also reduces the perceived danger of addictive gambling.

Facebook's algorithm chooses content to display on the News Feed based on user data

It employs machine learning to prioritize posts and ads based on user interactions, content type, and post timeliness, creating a personalized, engaging experience for each user.

Drug tolerance and withdrawals are consequences of overloading dopamine circuits

Addictive substances or behaviors will typically flood our brains with more dopamine than usual. In response to the overstimulation, our brains will decrease the number of available dopamine receptors. This results in the need for more stimulus for the same response (tolerance) and a rise in negative feelings when the stimulus is absent (withdrawal).

Social media algorithms are shaping real-life language through memes

The evolution of the internet in the early 2000s supercharged the creation and spread of memetic content. Now, highly tuned algorithms on platforms like TikTok and YouTube influence the language, phrasing, and content of creators, which shapes how we use language in the real world.

Fantasy sports can have adverse health effects

Experts warn that fantasy sports, including fantasy football, can encourage obsessive use because they offer hits of dopamine. Daily fantasy games, which function more like gambling, are especially problematic.

Some experts equate prediction markets to the new crack cocaine of gambling addiction

An addiction psychiatrist at UCLA says betting apps are far more potent than traditional gambling, citing a 19-year-old patient who lost $180,000 and hadn't left campus in a year, cycling through sports bets, crypto, meme stocks, and prediction markets on his phone. This interview explores the extreme edge of the nascent industry.

People are making careers out of playing claw machines

As it turns out, winning at a claw machine arcade game over and over again makes for great social media content. Influencers like Erik Kane are taking advantage of this—and making money off of it, too.

In this live interview with phone-free childhood advocate Jonathan Haidt, host Ava Smithing—of Gen-Z—presses Haidt on why there isn't more of a research consensus on the mental health implications of social media for children, among other contentious topics.

Addiction develops when the pleasure circuits in the brain get overwhelmed

Normal pleasure circuits become overwhelmed by addictive substances, triggering dopamine floods many times stronger than those induced by everyday reward experiences. The understanding of addiction as a brain disease has led to treatments pairing medication and counseling.

What exactly is dopamine?

Dopamine is a neurotransmitter—a chemical released by neurons that enables neural communication—that makes people want things with an "almost animalistic desire," compelling them to snack or check phone notifications. Often misrepresented as a "pleasure" chemical, dopamine is involved in motivation, learning, attention, habit formation, and more. Trends like dopamine fasting overinflate its role in mental health and often use it as part of "straw man" biohacking claims.

Social media can be a valuable public health tool, combating misinformation, advancing health research, boosting social mobilization, and raising awareness of health services and events.

The dead internet theory suggests that mostly bots are interacting online

The dead internet theory proposes that bots create most online content. These bots are believed to create social media posts to boost engagement and increase advertising revenue. However, the accounts doing the liking and commenting are also believed to be bots. The theory suggests governments use bots to manipulate public opinion.

Ads follow you around the internet through technology called 'cookies.'

A technology called "cookies" enables advertisers to essentially team up and follow your behavior around on the internet. This video explains why it seems like ads seem to follow you as you go from website to website—as well as data privacy advocates' war against cookies.

Meta has added video features to attract more young users to Facebook

Amid an aging userbase and competition from newer social networks like TikTok, Facebook has seen its perceived relevance and cool factor progressively decrease. The Local tab and dating features are among several efforts to counter this perception.

Why are humans hooked on horror?

A haunted horror attraction in Denmark is regularly stalked by researchers of the world's only laboratory dedicated to understanding fear's good side. Fear is one of many human emotions that correspond to a physiological response. As fear rises, so do adrenaline, cortisol, and heart and breath rates. As it ebbs, the body is flooded with dopamine, a hormone and neurotransmitter associated with desire, learning, and motivation.

Some people may be genetically predisposed to loving roller coasters

Recent studies indicate that individuals with higher levels of dopamine may be more prone to thrill-seeking behaviours like riding roller coasters or even doing drugs or shoplifting.

Many dating app users are beginning to suffer from 'dating app burnout'

For younger generations, dating apps have become a primary avenue for creating romantic connections—leaving some users fatigued and contributing to increased feelings of loneliness.

While influencers try to make money off of their posts, that's not always the case for content creators.

Meta Platforms Inc., which owns both Facebook and Instagram, is the largest social media company in the world.

How big brands keep your loyalty

We perceive ourselves as rational decision-makers—but research about our consumption habits suggest we are easily played by clever marketing. Here's how big brands design their branding to keep you coming back.

The rise of generative AI could exacerbate anxiety because people may turn to chatbots for constant reassurance.

Understanding 'YouTube Face,' the platform's pervasive thumbnail style

It's an image that's rampant across the web's premier video platform: open mouths, astonished eyes. It looks cheesy and cheap, yet its practitioners are some of YouTube's most popular personalities. The Ringer's Nate Rogers digs into the history of the phenomenon to learn why it's had such staying power.

Why we pay to be scared

Why do we love roller coasters? It’s not just the speed or height, it’s controlled fear. Your brain thinks you’re in danger, then rewards you with dopamine.

Disconnecting from technology can be made easier by turning off notifications, making nonessential apps and devices harder to access, and opting for 'dumb' devices, such as a film camera.

How TikTok ate the internet

TikTok is now deeply integrated into American culture, thanks to the app’s powerful algorithm and focus on entertainment which have influenced popular trends and social media content consumption in the US. This immersive piece highlights TikTok’s role in helping shape everything from music to fashion and even politics in the US—while its connection to China has also drawn scrutiny and raised national security concerns.

Facebook's internal documents show that though the company publicly plays down Instagram's harms, its own research found that Instagram has promoted mental health issues for teens.

American Psychological Association issues recommendations for teen social media use

Listen to this three-minute podcast to learn more about the American Psychological Association's recommendations for teenagers' use of social media. The first report of its kind, it advises parents to closely monitor teens' social feeds during early adolescence, continually screen for signs of problematic use (such as sleep interference), minimize the amount of dangerous content their child is exposed to (such as disordered eating), and limit their teen's use of social media around appearance-related content.

Viral pop artists create systems of participation, not just music

Musicologist (and Swift expert) Paula Clare Harper weighs in on the factors that make music go viral. Tracks designed for shareability that feed well into content algorithms on streaming platforms are able to grow in popularity, with traditional human gatekeepers sidelined.

Fantasy sports have turned fans into 'second screen' consumers

The rise of smartphones made fantasy sports more accessible and contributed to a phenomenon called “second screen consumption,” where sports fans are not only watching a live broadcast but are simultaneously watching the statistics from that game play out in their fantasy matchup.

Some influencers are facing the dark side of being a public persona

From burnout to stalkers, a content creator’s life can quickly become complicated as their following grows. Women’s Health recently spoke with some creators about what they wish they’d known before they started their careers on social media.

Music today is often intended to circulate on social media

Artists are increasingly using TikTok and other short form video platforms as a space to promote their music. One scholar notes this emphasis, and connect it to Taylor Swift's early use of social media to promote her own work and brand.

Can the gut microbiome drive addiction?

New research suggests an imbalance of gut microorganisms may influence the likelihood of addiction and addictive behaviors by increasing the severity of withdrawal symptoms, triggering brain inflammation in regions of impulse control, and more.

Mark Zuckerberg credits some of Facebook's success to constant evolution

Before becoming the head of OpenAI, Sam Altman was the president of Y Combinator—a startup accelerator company that supported companies like Airbnb, DoorDash, and Coinbase. In 2016, Altman interviewed Zuckerberg about creating Facebook and its growth over time. Zuckerberg said that, unlike other companies (think: CourseMatch), Facebook kept growing and adding new features, which prevented the app from becoming obsolete.

YouTube's recommendation algorithm relies on over 80 billion daily pieces of information

These signals include which videos a user has watched, searched for, and liked, as well as channel subscriptions and feedback selections, such as videos marked "not interested." Each user's viewing habits are compared with those of other users with similar habits, and this information is used to suggest additional content.

Social media can reinforce echo chambers that amplify pre-existing sentiments

A 2023 Nature study showed that exposure to diverse content left participants with unchanged core beliefs, suggesting social media alone cannot create hateful viewpoints. However, such platforms allow rhetoric to spread widely, potentially exacerbating geopolitical tensions.

Temu uses gamification techniques to encourage customers to shop on its app

Games include a spinning roulette wheel that offers coupon rewards, promises free delivery, and more. Some have said it’s tough to pull themselves out of the Temu ecosystem once they’re in it.