I’ve written about the convergence of technology in a number of recent Forbes pieces, discussing how AI, quantum, and other emerging technologies are changing our infrastructure, security, and economy. However, the convergence of technology with our own neurochemistry is a more personal convergence that we are not talking about enough. Technology is changing the brain systems that govern our attention, not just vying for it.

We are more than just preoccupied; our minds are being hijacked. We are changing chemically. There is no moral failing or lack of discipline behind the attention-span crisis. It is intended to be a biological result.

Because human attention is the basis for critical thinking, creativity, innovation, and even constructive democratic discourse, all of these factors are important. When attention breaks, everything built upon it weakens.

The Smartphone and Social Media’s Scroll’s Nervous System

What neuroscientists refer to as the variable reward loop is the foundation of every significant social media platform and smartphone ecosystem. This loop that underpins social media and smartphones is psychologically similar to those found in slot machines. The brain is trained to continuously search for the next reward because each swipe or notification produces a tiny dopamine rush. By providing us with constant streams of expertly crafted content, generative AI takes this effect even further, keeping our minds in a state of constant searching, scrolling, and responding.

1. The Anticipation Molecule, Dopamine

Your brain releases dopamine when you swipe through TikTok, check Instagram, or refresh LinkedIn—not because you find something rewarding, but rather because you anticipate finding something rewarding. The smartphone, according to Dopamine Nation author and Stanford psychiatrist Dr. Anna Lembke, is the “modern-day hypodermic needle” that delivers digital dopamine around the clock. Dopamine Nation — Anna Lembke, MD

Additionally, each buzz, ping, or alert triggers a small stress reaction. The body releases norepinephrine and cortisol, which are chemicals, dozens or even hundreds of times a day. This causes the brain to remain elevated and preoccupied over time.

The pain-pleasure balance—each digital reward is followed by a compensatory decline below baseline—is the main idea of Dopamine Nation. As a result of the brain’s gradual downregulation of dopamine production, users experience increased anxiety, irritability, and a desire to scroll again just to feel normal.

AI has made this process faster. We have progressed from basic algorithms to agentic, predictive systems that simulate user behavior in real time, as I mentioned in Forbes’ article “The Rapid Trajectory of Artificial Intelligence.” By constantly optimizing the user’s dopamine response curve, these recommender engines keep the brain in a state of constant search.

Dopamine stacking is the outcome, which increases the baseline tolerance for stimulation through quick, low-effort hits. In contrast, routine tasks like reading a book, maintaining a meaningful conversation, or focusing on challenging analytical work start to feel less stimulating.

2. Cortisol and the Constantly Alert State

Our world is always connected thanks to our engineering. The smartphone has evolved into the ultimate Internet of Things sensor, constantly pinging, vibrating, and buzzing. According to Microsoft’s 2025 Work Trend Index, the typical knowledge worker gets 117 emails and 153 Teams messages every day. During core work hours, interruptions occur every two minutes, or about 275 times in an eight-hour workday. New Microsoft Study Reveals the Rise of the “Infinite Workday” – 40% of Employees Check Email Before 6 a.m., Evening Meetings Up 16% - Microsoft Switzerland News Center

Every alert sets off a micro-stress response, which is a transient spike in cortisol and norepinephrine that causes the sympathetic nervous system to enter a low-grade fight-or-flight state. Chronic attentional vigilance is the result of the cumulative effect. It becomes neurologically challenging to focus deeply when the brain is still ready for disruption.

3. The Deterioration of Attention Systems

A smaller anterior cingulate cortex (ACC), which is responsible for focus, self-control, and emotion regulation, is one of the physical alterations in the brain associated with prolonged digital multitasking, according to research. People who frequently switch between multiple media streams (texting while scrolling, checking email while watching videos, etc.) seem to have a smaller ACC.

A 2014 study published in PLOS ONE compared individuals who multitask heavily with those who don’t use brain-imaging techniques. The study discovered that gray-matter density in the ACC, a region essential for emotional regulation, cognitive control, and sustained attention, was lower in heavy multitaskers than in those who did not multitask heavily. https://doi.org/10.1371/journal.pone.0106698

In common parlance, the brain’s “attention control center” may be weakened by heavy media multitasking, making it more difficult to focus intently, control distractions, and control emotions—all abilities necessary for cybersecurity analysis, strategic planning, and creativity.

Behavioral data follow the same downward trend. According to Gloria Mark’s 2023 book Attention Span, which details her longitudinal research at UC Irvine, the average amount of time spent on a single screen task decreased from roughly 2.5 minutes in 2004 to 75 seconds in 2012 and finally to 47 seconds by the late 2010s and early 2020s. Half of all recorded periods of screen focus last 40 seconds or less, according to the median, which is even shorter at 40 seconds. We are literally rewiring the networks of executive functions that support sophisticated thought. Regaining Focus in a World of Digital Distractions - UC Irvine Donald Bren School of Information & Computer Sciences

If smartphones caused a breakdown in human attention, generative AI is now hastening that decline. What we’re witnessing is the emergence of “synthetic dopamine,” which are algorithmically created stimuli intended to activate the brain’s reward circuits with previously unheard-of accuracy. Generative systems create infinite, hyper-personalized streams that never lose their novelty or intensity, in contrast to traditional digital content. They create feeds that are frequently more captivating than anything created by humans by learning a user’s cognitive weaknesses in real time and optimizing for engagement chemistry.

These same models that can increase productivity can also industrialize distraction, undermining the neural systems necessary for deep work, strategic judgment, and innovation, as I have discussed in Forbes regarding the dual-use nature of AI. The attention economy, now evolved into an AI-accelerated attention extraction economy, is just starting to show its neurological effects.

In the past, boredom acted as a neurological reset, a silent period of cognitive activity during which the brain’s default-mode network was activated to facilitate long-term planning, creative insight, and memory consolidation. Those restorative gaps have virtually disappeared in today’s digital world. These days, algorithmically optimized content, alerts, and artificial intelligence-generated micro-stimuli take the place of the brain’s natural pauses. This erosion is accelerated by generative AI, which eliminates all friction and ensures that the mind is never truly “off” by producing endless, personalized engagement on demand.

This is a growing cognitive security issue rather than merely a mental health one. An adversary does not need to directly compromise a network if they can divert human attention through distraction, overstimulation, or engineered information flows. The operator may be compromised. The death of boredom is a strategic vulnerability in a time when human judgment is essential to organizational and national resilience. Degradation of cognitive security could have just as much of an impact as any technical breach since it is becoming a frontline domain.

Regaining Cognitive Sovereignty: The Next Step

The technology cannot and should not be put back in its original packaging. However, as with cybersecurity, we must design resilience.

1. The Brain’s Design for Security

We require what I refer to as “Cognitive SBOMs” transparency regarding the neurochemical modulation of recommendation algorithms. One first step is the Digital Services Act of the EU. Platforms that use variable-reward optimization strategies should disclose their practices publicly.

2. Digital Resilience Structure

• The default setting for zero-trust notifications is off, not on.

• Time-boxed Dopamine Fasts: 90-minute device-free deep work blocks that let dopamine baselines reset.

• Analog Anchors: regular activities like reading print, writing notes by hand, and going for walks without a phone that help restore cholinergic tone.

3. AI Focused on Humans (HCAI)

Systems that maximize human flourishing rather than merely engagement must be demanded. AI assistants should protect attention rather than take advantage of it, help users stop scrolling, and surface signals in the midst of background noise.

The greatest danger of AI is not that it will become overly smart, but that we will become too preoccupied to use it wisely. Human focus is more than just a productivity indicator. It serves as the foundation for relationships, critical thinking, democratic discussion, and innovation. It is the natural resource that we value the most.

AI, social media, and smartphones have figured out how to take advantage of our chemistry. We have to learn how to keep it safe now.