It’s Sunday evening, and you’re reviewing another week of incremental progress on five different goals without truly moving the needle on any. You worked out twice, read 20 pages of that business book, spent quality time with family, and kept up with your meditation practice. You’re doing everything right according to the productivity experts. So why does meaningful change feel so elusive?

The accepted wisdom tells us progress comes from small, consistent changes that compound over time. Consistency has its place. But there’s another dimension to transformation we rarely discuss: the catalytic power of intense productivity sprints. It’s this more intense, temporary mode of obsession, argues author Jonathan Goodman in Unhinged Habits, which is key.

What if those steady habits could be supercharged by occasional periods of intense, almost unreasonable focus? And how can we harness this near-term intensity without burning out?

Productivity Sprints at the Level of the Brain: The Role of Neuroplasticity

We live in an era that prizes balance above all else. Productivity gurus often preach the gospel of sustainable habits and warn against the dangers of going too hard. But neuroscience reveals something fascinating about how our brains actually change: They respond disproportionately to intensity.

Neuroplasticity is the observation that our brains are highly malleable; they change, sometimes in dramatic ways, to reflect new acquisition of skills and knowledge. In a classic example, University College London studied aspiring London taxi drivers preparing for “The Knowledge,” that notorious test requiring the memorization of 25,000 streets. When they examined the brains of these taxi drivers before and after this intensive study period, they discovered something remarkable: The posterior hippocampus, crucial for spatial navigation, physically enlarges.

The human capacity for learning is incredible, and these learning gains are reflected at the level of our neuroarchitecture. But what’s often overlooked in these studies is how the learning usually takes place. This wasn’t a gradual change from years of casual exposure. The students who succeeded spent 3 to 4 years in deep immersion, often studying 5 to 7 hours daily. Their brains literally reshaped themselves in response to this intensity.

This finding points to a broader principle in human neuroscience: Transformation often requires crossing intensity thresholds that moderate effort simply can’t reach.

This likely isn’t an accident. At the level of the brain, intense learning looks very different than the slow, consistent gains we’re more familiar with. Research finds that during periods of intense focus, our brains exhibit transient hypofrontality. The prefrontal cortex, largely responsible for self-monitoring, tends to quiet down, mirroring what is often seen in “flow states,” where the boundaries between self and task dissolve.

How Social Identity Influences the Psychology of Habits

These intense productivity sprints also have broader implications for self and identity as well. When we work intensely on something, that work, whether in business, in fitness, or in our personal passions, has an outsized impact on our self-concept. If you get up and run every morning at 6 a.m., chances are, you won’t just regard yourself as a “person that runs,” but as a “runner.”

And, in fact, psychology research reveals something crucial about transformation: This identity transformation doesn’t update gradually. We don’t slowly morph from “person who doesn’t exercise” to “athlete.” We don’t shift from “couch potato” to “avid runner” when we build in a jog or two as part of our weekly routine. Instead, identity shifts happen through what researchers call “disruptions” followed by intensive reorganization.

In a series of studies on identity reconstruction, psychologists found that people who successfully transformed their lives experienced what researchers term “punctuated equilibrium.” These are long periods of stability punctuated by rapid, intensive change. The steady habits maintained the new identity, but the sprint created it.

Can Slow Habits and Productivity Sprints Co-Exist?

Should we then go all out on these intense sprints, throwing concerns of burnout to the side? Thankfully, we needn’t choose one over the other. Here, Goodman provides a particularly useful framework for thinking this through: “Intensity is for gaining. Consistency is for maintaining.” These aren’t opposing philosophies but complementary modes, each essential for different phases of growth.

Most of us live in perpetual maintenance mode. We do enough not to lose ground but rarely enough to truly advance. We’re maintaining habits and routines that were never fully developed in the first place. It’s like carefully watering a plant that was never properly rooted.

Consider Taylor, a personal trainer Goodman describes, who spent three years trying to build an online business in her spare time. One client in three years. Then, facing a wedding, she committed to 12 weeks of obsessive focus. The result? Fourteen new clients and $21,000 in revenue. The years of balance hadn’t failed her; they’d simply never crossed the threshold required for transformation. As Goodman distills, “a single lightning strike can permanently alter the landscape, whereas even a thousand little sparks simply diffuse into the unimpacted ground.”

The Enduring Power of Contrast

Ultimately, Goodman presents a compelling argument, not to drop our consistent habits, but to complement them with these punctuated periods of unreasonable dedication. Our most meaningful transformations often come not from doing a little bit of everything forever, but from a finite period of intense focus.

Perhaps the most liberating aspect of embracing sprints is understanding that progress has a natural rhythm. We thrive amidst high-contrast shifts. Why? Because we notice and appreciate things more when they feel new. Decades of research spanning multiple domains, such as attention, pleasure, and consumer psychology, all converge on the same finding: We’re sensitive to change, not constants.

You’ll easily forget your weekly run, as it seeps into the background of life’s routines. But that first day off after a week of intense daily workouts at the gym? It’ll feel like no other rest you’ve ever experienced. We’re contrast-sensitive creatures, so perhaps it’s time to harness that to our advantage.

What if, instead of seeking perpetual balance, we designed our lives around strategic oscillation? Three months of business obsession followed, for example, by family focus. After an intensive sprint, returning to regular habits feels refreshing. After months of steady maintenance, a new sprint feels exciting rather than overwhelming. These high-contrast swings from intense productivity to relaxed living may not merely make us more productive, but happier in the long run, too.

As Goodman describes, “Think of consistency as the reliable foundation that keeps you from sliding backward, while intensity is the force that propels you forward.” Intensity and consistency may simply serve different purposes in the architecture of change.

Maybe it’s time we stopped feeling guilty about our occasional obsessions and started seeing them for what they are: the catalysts that make our steady progress meaningful.