Modern lifestyles characterized by constant digital stimulation are increasingly at odds with the human nervous system’s capacity for regulation, experts say. The resulting dysregulation can manifest as anxiety, difficulty sleeping, irritability, digestive issues, and other physical symptoms, according to somatic practitioner Nahid de Belgeonne.

Prolonged stress triggers sustained elevations in cortisol, the primary stress hormone, which over time can suppress immune function, disrupt sleep patterns, impair digestion, and contribute to weight gain. This hormonal imbalance also affects brain functioning, diminishing creativity and problem-solving abilities. De Belgeonne notes that when stress persists, the brain reallocates physiological resources away from critical functions such as digestion, sleep, and reproduction, further undermining overall health.

The skin may also reflect chronic stress through increased inflammation, exacerbation of conditions such as eczema and psoriasis, and diminished collagen production, leading to dull and weakened skin.

Experts emphasize that the issue lies not in the presence of stress itself, but in the inability to exit the heightened sympathetic “fight or flight” state and return to parasympathetic rest and recovery. “Financial worries, relationship issues, work: we can’t always control the stressors in our lives,” said Dr. Zoe Williams, a general practitioner, “but we can influence how that stress is processed in the body, right down to the level of our cells and organs.”

Awareness is often the first step toward better nervous system regulation. Breathwork coach Rob Rea recommends body scans as a method of identifying physical tension and encourages monitoring heart-rate variability (HRV) as an objective indicator of nervous system balance. Lower HRV is associated with sympathetic dominance and chronic stress.

Simple practices such as sitting quietly for a few minutes can help retrain the body to tolerate stillness, which has become scarce in an era dominated by digital distractions. Meditation and mindfulness have been shown to activate parasympathetic pathways, with regular practice sometimes linked to increases in brain grey matter, which supports emotional regulation and resilience.

Cognitive hypnotherapy and guided breathwork techniques offer additional tools to calm the nervous system. For example, slow, controlled breathing patterns—such as inhaling through the nose for four seconds and exhaling through the mouth for six—stimulate the vagus nerve, promoting relaxation.

Emerging technologies designed to improve vagal tone, including devices that use mild electrical stimulation, have gained attention. While implanted vagus nerve stimulators are approved for medical conditions like epilepsy and treatment-resistant depression, research on non-invasive devices is ongoing. Dr. Williams notes these devices “hack the system” by gently stimulating nerves through the ears or chest to modulate stress responses.

Movement also plays an essential role in regulation. De Belgeonne highlights how chronic muscular tension from past stress can perpetuate nervous system dysregulation, advocating physical activity and deliberate muscle release as ways to signal safety to the brain.

Establishing routines—regular sleep, consistent meal times, and predictable physical activity—further supports nervous system stability. Dr. Spiegel advises maintaining daytime activity and avoiding clock-watching during nighttime awakenings to prevent reinforcing stress-related arousal.

Social connection and time spent outdoors contribute positively to nervous system regulation, while loneliness is linked to dysregulated stress responses. Traditional medical systems, such as Chinese medicine, underscore maintaining harmony and rhythm in daily life as central to managing stress, sometimes recommending early intervention with herbs and acupuncture to ease emotional tension.

The challenges of the modern environment—persistent stimulation, sedentary behavior, and social disconnection—undermine natural regulatory processes that evolved in more rhythmical and communal settings. Experts suggest that recalibrating toward simplicity rather than accumulation may be key to restoring balance in an overstimulated world.