The Psychology Behind Black Friday Madness – Why We Scan, Click, and Buy
- Brainz Magazine
- Nov 26, 2025
- 5 min read
Matching Leanne’s impressive qualifications, which include medical and business degrees from Harvard, are her energy, humor, and keen insight. Dr. Leanne Elich is an award-winning Sales Psychology and Business Strategist, author, speaker, and one of Australasia's most successful Technology Business Executives.
Every year, the Black Friday and Cyber Monday frenzy sweeps across screens and shopfronts worldwide. Countdown clocks tick, stock bars flash red, and deals scream “ends soon.” For shoppers, it’s an adrenaline rush. For marketers, it’s a masterclass in human behaviour.
But behind every lightning deal and QR-code scan lies something more profound, the psychology of urgency, scarcity, and trust. Understanding what truly drives customers during these high-stimulus moments can help businesses not only boost sales but also build relationships that last long after the discounts disappear.
The power of urgency and FOMO
Few forces in consumer psychology are as powerful as loss aversion, our instinct to avoid missing out. When banners warn “Only two left!” or timers count down to midnight, the brain releases stress hormones that push us to act fast.
This is FOMO (fear of missing out) at its most profitable.
In those moments, the rational part of the brain takes a back seat while the emotional, impulsive limbic system takes control. We buy not because we have compared all options, but because the opportunity feels fleeting. It is why shoppers will queue overnight for deals they never planned to buy. The emotional payoff of winning the sale outweighs logical reasoning.
Marketers have long understood that urgency can drive action, but behavioural science shows it must be used carefully. Artificial scarcity, countdowns that reset or discounts that never truly end, can create short-term spikes but long-term scepticism. Ethical influence means using urgency honestly, with genuine time limits, transparent availability, and clear value. Because when the clock hits zero and resets the next day, customers notice.
Dopamine and the discount effect
Discounts do not just move inventory, they move neurochemistry. When shoppers see a significant price reduction, the brain releases dopamine, the same neurotransmitter linked to pleasure and anticipation. That small burst of excitement fuels scrolling, scanning, and impulsive “add to cart” behaviour.
This reward loop is what makes sales events feel addictive. Each new deal promises another hit of novelty and satisfaction. But dopamine highs come and go. Once the thrill fades, customers often return to baseline and question whether they truly needed what they bought.
That is why sustainable loyalty depends on more than temporary rewards. It depends on perceived value. When customers walk away feeling they have not only saved money but also discovered quality, convenience, or meaning, the emotional experience lingers. In contrast, a poor post-purchase experience can turn excitement into regret.
Smart brands recognise this distinction. Discounts may attract, but value retains. Delivering exceptional service, seamless digital journeys, and consistent quality helps transform that momentary dopamine rush into lasting trust.
Trust: The quiet driver of loyalty
Among the noise of flashing banners and overflowing inboxes, trust becomes the quiet but decisive factor behind every purchase. In chaotic environments, people seek psychological safety, brands they believe will not let them down.
Trust manifests in small but critical cues:
Believing that a discount is genuine, not inflated
Feeling confident that a QR code or link is safe
Knowing the product will arrive as promised
According to Uniqode’s recent consumer study, more than a third of shoppers remain uncertain about whether QR code offers are secure. That hesitation highlights a universal truth, when people feel rushed, they rely even more on familiar brands and signals of reliability.
Designing for trust means removing friction and confusion. Clear language, secure checkout flows, authentic reviews, and visible customer support make people feel safe to buy and safe to return. Because while urgency can trigger action, trust is what sustains it.
Different shoppers, different triggers
Not all shoppers are wired the same way. Behavioural science reminds us that the brain’s response to marketing depends on context, culture, and experience.
Gen Z and Millennials respond to interactivity. QR codes, gamified deals, and shareable exclusives. They value novelty and digital fluency.
Gen X prefers straightforward value and practicality. They are motivated by clarity and authenticity rather than hype.
Baby Boomers lean toward familiarity and reassurance, often favouring email communication or in-store experiences.
Gender and geography also shape engagement. Research shows men are slightly more comfortable with QR code scanning, while women often seek greater reassurance of safety and authenticity. In some regions, tech-driven campaigns flourish. In others, traditional trust cues like personal service still win out.
For businesses, the key is segmentation with empathy, tailoring the message to the audience’s mindset rather than just demographics. The most effective campaigns make people feel understood, not targeted.
Why it matters
Black Friday is more than a sales event, it is a global behavioural experiment that plays out in real time. It reveals how humans respond to scarcity, reward, and social proof, and how easily emotion can override logic.
But it also exposes an opportunity. The same psychology that drives impulse can also drive loyalty when used ethically. If businesses apply these principles with integrity, focusing on genuine value, transparency, and empathy, they turn momentary transactions into long-term trust.
In contrast, manipulative tactics such as fake urgency, hidden terms, or misleading offers may work once, but they ultimately damage credibility. Behavioural science shows that trust lost through deception takes far longer to rebuild than the short-term revenue gained.
What we can learn from Black Friday
The forces that shape Black Friday behaviour are not confined to one weekend. They mirror everyday decision-making, the constant tension between impulse and intention.
To translate holiday spikes into sustained growth, business leaders can:
Design urgency responsibly. Create real scarcity, not artificial panic. Authenticity sustains credibility.
Deliver on value. Ensure the product and service experience live up to the emotional promise of the promotion.
Build trust at every touchpoint. From landing pages to checkout, design for psychological safety, clear language, secure systems, and honest reviews.
Measure loyalty, not just revenue. Success is not who bought in November, it is who stays in February.
Think long-term. Emotional connection outlasts the sale. When customers feel good about their choice, they become advocates.
Changing behaviour by design
Black Friday may showcase the extremes of consumer psychology, but it also reminds us of a simple truth. The brain is not just buying products. It is seeking feelings, excitement, certainty, belonging, and reward.
When we respect these emotions, they do more than sell. They create experiences that people want to repeat.
Because in the end, behavioural science is not about getting customers to buy faster. It is about helping them buy better and feel great long after the sale is over.
Read more from Dr. Leanne Elich
Dr. Leanne Elich, Business Psychology Strategist
Matching Leanne’s impressive qualifications, which include medical and business degrees from Harvard, are her energy, humour, and keen insight. Dr. Leanne Elich is an award-winning Sales Psychology and Business Strategist, author, speaker, and one of Australasia's most successful Technology Business Executives. Leanne is a pioneering thought leader and sought-after expert in psychology and neuroscience applied to business. She works with companies to empower their ability to ethically influence consumer behaviour. With a PhD in Cognitive Neuropsychology and a catalogue of publications, Leanne was awarded the 2023 Top 20 Women in Business. Her mission is changing business, one brain at a time.
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