The spotlight on nervous system regulation has reached a fever pitch. As of press time, Spate data shows interest in “nervous system regulation” up nearly 1,000 percent year-over-year across Google, TikTok and Instagram. Google search interest in cortisol has nearly doubled since the new year, hitting an all-time high for the third consecutive month, while searches for “stress relief” continue to climb.
Experts aren’t surprised. Dr. Sam Faramarzi, a naturopathic doctor and Dose scientific advisory board member, says chronic stress has quietly become a baseline for many people. “It’s no longer just about feeling anxious—it’s showing up as disrupted sleep, low energy, digestive issues, hormonal imbalances and inflammation.”
Symptoms once treated in isolation are now being connected to a single root: a nervous system that has been pushed into overdrive.
“We are living in collective trauma,” says Dr. Caroline Leaf, a neuroscientist and mental health expert. “The pandemic, the pace of modern life, the relentless scroll of social media—these aren’t just stressors, they are neurologically upsetting forces that have pushed many people into a chronic state of unmanaged toxic stress. People are finally connecting their anxiety, fatigue and relational difficulties to a biological impact. They’re also recognizing that if we properly manage stress, this impact is reversible, which is incredibly hopeful.”
The Science
When the System Gets Stuck
At its core, nervous system dysregulation is not about stress itself; it’s about the body losing the ability to recover from it. “When we talk about dysregulation, we’re talking about the entire neurological nervous system of the brain and body losing its flexibility,” says Dr. Leaf. This means it can no longer move easily between its states of activation (fight-or-flight) and recovery (rest-and-digest).
This is where the vagus nerve comes in. Running from the brainstem all the way down through the heart, lungs and gut, it acts as a communication highway between the brain and body. Dr. Leaf says it’s essentially “the brain’s direct line to the body,” constantly relaying information about its internal state.
When the vagus nerve is functioning well, it acts as the body’s internal brake system, slowing heart rate, supporting digestion and reducing inflammation. But when toxic stress is unrelenting, Dr. Leaf explains that the threat-detection centers of the brain become hyperreactive as the conscious parts of our mind flood these brain centers with chaotic energy. Cortisol shifts, inflammation rises and the body loses its ability to efficiently return to baseline. “The brain and body are doing exactly what they were designed to do under threat,” she says. “The problem is that modern life has created a near-constant perception of threat, and the system never gets the signal that it’s safe to stand down.”
The Real Impact
Beyond “Feeling Stressed”
What makes a dysregulated nervous system so difficult to recognize is that it rarely presents as a single problem—it shows up everywhere. “The body isn’t compartmentalized,” says Dr. Faramarzi. “The nervous system is deeply connected to metabolic health, inflammation, hormone balance and how efficiently the body processes stress.”
Clinically, that interconnectedness is why dysregulation looks different from person to person. Dr. Faramarzi sees it linked to conditions ranging from anxiety and insomnia to irritable bowel syndrome, migraines, chronic fatigue and even forms of dysautonomia like POTS. The common thread, she explains, is that “the body has difficulty shifting out of a prolonged fight-or-flight state.”
Once that stress response becomes chronic, the effects ripple outward. Cortisol—the body’s primary stress hormone—is meant to rise and fall throughout the day. But, when it’s consistently elevated, it begins to disrupt metabolism, reproductive hormones and thyroid function. “Hormones like cortisol depend on how well the body can metabolize and clear them,” Dr. Faramarzi says. When those pathways—particularly in the liver—are impaired, it creates an ongoing “internal stress load,” keeping the body under pressure, even without an external threat.
Inflammation and gut health then reinforce the cycle. Inflammation increases nervous-system sensitivity, impacting mood, energy and pain perception, and “amplifying how reactive the system becomes,” says Dr. Faramarzi. At the same time, disruptions in the gut-brain axis affect neurotransmitter production, linking digestion, emotional regulation and stress resilience in a continuous feedback loop.
The Hair + Skin Effect
Though dysregulation of the nervous system is systemic, some of the most visible effects show up on our skin and scalp.
Long Island, NY dermatologist Kally Papantoniou, MD explains that chronic stress primarily manifests as inflammation and a weakened skin barrier, meaning acne flares, increased sensitivity and worsening of existing skin conditions like eczema and rosacea. Skin can often look duller and be more reactive and slower to heal. “Stress doesn’t always create new conditions,” she says, “but it often worsens what is already there.”
The same pattern applies to hair, though it’s often more delayed and less intuitive. According to trichologist William Gaunitz, stress-related shedding—known as telogen effluvium—can show up months (usually three) after the initial trigger and tends to occur diffusely across the scalp. “Physical sensations like scalp tightness or tingling are often associated with stress-related neurogenic inflammation of the scalp,” he says. “Chronic emotional stress can also contribute to low-grade systemic inflammation and hormonal shifts that disrupt the hair-growth cycle and scalp microbiome, making hair more susceptible to shedding over time and increasing the potential for inflammatory scalp conditions.”
Prolonged levels of elevated cortisol create what Gaunitz calls a “microinflammatory” environment, increasing the body’s demand for key nutrients and gradually pulling resources away from functions it deems nonessential, like hair growth. Over time, this can weaken the follicle environment and contribute to shedding and conditions tied to immune imbalance. “It’s a whole-system impact—not just one pathway.”
What Actually Helps
Daily Practices That Move the Needle
Believe it or not, there’s good news: “Neuroplasticity means none of this is a life sentence,” Dr. Leaf says. “The mind can reorganize the networks of the brain, and the nervous system can heal. The timeline depends on the depth of the dysregulation and the consistency of intervention, but the capacity for recovery is built into our biology.” Despite the complexity of nervous-system dysregulation, the most effective interventions are often the most foundational, and most consistent.
Breathwork
According to Dr. Faramarzi, slow, diaphragmatic breathing remains one of the most evidence-backed tools for regulating the nervous system. “Slow breathing helps activate the parasympathetic nervous system, essentially signaling safety to the body and improving heart rate variability, which is a marker of resilience,” she says. Dr. Leaf explains the shift reflected in heart rate variability: “Inhaling tells the body it’s going to be OK, and exhaling tells the body it is OK.”
Mindset + Meditation
Beyond the breath, how you think also matters. Dr. Leaf emphasizes that mindset plays the most critical role in regulation, and approaching these practices with a sense of agency, such as “I can handle this,” reinforces safety signals in the brain. Meditation and structured mindfulness practices build on this over time, but only when they are intentional. Dr. Leaf says she sees “consistent changes in prefrontal cortex thickness, amygdala reactivity and default mode network regulation in people who manage their mind” or meditate. This underscores how these practices can reshape the brain’s stress response and reduce reactivity.
Foundational Health
Regulation isn’t just about calming the mind in the moment, Dr. Faramarzi explains. “It’s about supporting the body’s internal capacity to recover.” Sleep, metabolic health and nutrient intake (magnesium, B-complex vitamins and saffron among them) all influence how efficiently the body processes stress hormones and inflammation—key functions of systems like the liver. When those pathways are well supported, Dr. Faramarzi says the body can better clear stress-related byproducts and maintain internal balance, meaning “the nervous system doesn’t have to work as hard to compensate.”
Cold Exposure
Practices like cold exposure can activate the nervous system in beneficial ways, but they require context. While emerging research shows benefits for mood and vagal tone, Dr. Leaf cautions that adding high-intensity stressors to an already dysregulated system can backfire. These tools are most effective when layered onto an already stable foundation.
Wearables + Technology
Devices that track metrics like heart rate variability can be helpful tools for building awareness of how the nervous system responds to stress. Although second to managing our minds, Dr. Leaf notes heart rate variability biofeedback wearables can offer real value when used with intention. This isn’t because they regulate the vagus nerve directly, but rather that they provide real-time feedback that helps users learn to self-regulate. “That feedback loop is genuinely valuable,” she says, noting that technology can serve as a meaningful guide to help reconnect the body and build resilience.
However, Dr. Leaf emphasizes the importance of perspective. “The distinction is between a tool that supports regulation and a product that promises it,” she says. Wearables can build awareness and reinforce healthy habits, but they don’t replace the deeper work—managing stress, thought patterns and daily practices—that drives lasting nervous-system healing.
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