Anxiety, attention difficulties, emotional dysregulation, chronic digestive complaints, sensory sensitivities, allergies, autoimmune conditions and persistent fatigue have become increasingly common. One thing becomes clear: Children seem to be struggling more than ever before.

Even autism diagnoses have also risen dramatically. When many physicians practicing today were in medical school during the mid-1980s, autism was estimated to affect approximately one in 2,000 children. Today, the Centers for Disease Control and Prevention estimates that one in 31 children meet the criteria for autism spectrum disorder. While broader diagnostic criteria and increased awareness explain part of this increase, they don’t answer every question about why so many children are struggling. The population’s DNA hasn’t changed enough to explain the increase. However, environmental factors can affect how genes work much more quickly.

Functional medicine offers a different approach. Rather than focusing just on a diagnosis or label, it asks what underlying factors may be affecting a child’s developing brain and body. The goal isn’t to replace conventional care, but to look more deeply for contributors that may be influencing health and resilience.

One way functional medicine explains this concept is through the Bucket Theory.

Imagine every child has an invisible bucket. Throughout life, different stressors slowly fill that container. Some children are born with greater resilience, while others are more susceptible because of genetic SNPs (Single Nucleotide Polymorphisms) or early-life experiences.

Many seemingly unrelated factors can add to the load. Ultra-processed foods, unstable blood sugar, nutrient deficiencies, poor sleep, chronic stress, excessive screen time, recurrent infections, environmental toxins, food sensitivities and even hidden mold exposure in water-damaged buildings can all contribute to the body’s overall burden. Individually, these stressors may not cause significant problems. Together, however, they can gradually fill the bucket until it overflows.

Such occurrences often appear as symptoms rather than obvious illness. Seeing multiple providers and not getting a diagnosis is often a big clue that functional medicine is the way to go. Anxiety, poor concentration, emotional outbursts, headaches, digestive complaints, eczema, fatigue, sensory sensitivities and behavioral changes may all signal the presence of stress.

Instead of asking, “What’s wrong with this child?”, functional medicine doctors ask, “What is filling this child’s bucket?”

Nutrition is often one of the first places to look. The developing brain requires stable blood sugar and a steady supply of nutrients to function optimally. Diets high in refined carbohydrates and ultra-processed foods can contribute to energy crashes, irritability and difficulty concentrating.

Replacing with protein-rich, nutrient-dense whole foods helps provide the brain with more consistent fuel while supporting immune function and reducing inflammation.

The gut also plays a critical role in brain health. The digestive tract and brain communicate continuously through the nervous and immune systems. Many children experiencing anxiety or attention difficulties also struggle with constipation, abdominal pain, diarrhea or food sensitivities. Rather than viewing digestive symptoms and emotional symptoms as separate problems, functional medicine recognizes that they are often interconnected.

The environment also matters. Indoor air quality, pesticides, household chemicals, plastics and mold in water-damaged buildings may all contribute to chronic inflammation in susceptible children. While these exposures aren’t the answer for every child, they are frequently overlooked and deserve consideration when symptoms persist despite conventional evaluation.

Two children labeled with the same diagnosis could have a different set of root causes in their buckets. In some children, addressing contributing factors can substantially reduce associated symptoms and improve function, comfort and quality of life. Lower the contents of the bucket, lower the symptoms.

Fortunately, children’s brains and bodies are quite adaptable. As stressors are identified and reduced—and healthy habits such as nutritious food, restorative sleep, physical activity, stress management and cleaner indoor environments are introduced—the bucket begins to empty. Many children become healthier, more resilient and better able to thrive.

There’s rarely a single cause—or a single solution—for the challenges children face today. By asking better questions and looking beyond labels, families and healthcare providers may uncover opportunities to support our remarkable ability to heal and help children reach their full potential.

Dr. Achina Stein, DO, DFAPA, ABIHM, FACN, FMCP-M, is an osteopathic physician, board-certified psychiatrist and functional medicine practitioner at Functional Mind, LLC, in Providence, Rhode Island. Location: 105 Wickenden St., Ste. 6. For more information or to make an appointment, call 401-270-4541, email [email protected] or visit fxnmind.com.