Podcast Summary: "Why So Many People Have Allergies & Why You Keep Doing Things You Shouldn’t"

Something You Should Know with Mike Carruthers | March 2, 2026

Overview of the Episode

This episode explores two main themes: the modern allergy epidemic and the psychology behind self-sabotaging behaviors. In the first segment, Dr. Zachary Rubin, a pediatrician and allergist, dispels myths and clarifies realities about allergies, why they are on the rise, and how they impact our lives. The second half features Kati Morton, a marriage and family therapist, who delves into why people frequently repeat behaviors they know are harmful, with a focus on people pleasing and self-worth.

Segment 1: The Allergy Epidemic with Dr. Zachary Rubin

Understanding Allergies: Basics and Misconceptions

• Definition & Prevalence: Allergies are among the most common chronic diseases and include rhinitis, eczema, food allergies, asthma, and medication reactions ([00:48], [08:22]).
  • Quote: "Allergies...is one of the most common chronic diseases that affect millions of people and it's just not talked about enough." — Dr. Rubin (00:48)
• Rhinitis: Differentiation between allergic & non-allergic rhinitis ([05:34]).
  • IgE antibodies are key in an allergic response (histamine-related), whereas non-allergic rhinitis is prompted by nonspecific triggers (weather, pollution).
  • Treatments differ: antihistamines for allergic, steroid nasal sprays (e.g., Flonase) for non-allergic ([06:50]).

Diagnosing and Treating Allergies

• Testing: Only formal blood or skin testing can definitively distinguish between allergic and non-allergic rhinitis ([07:45]).
• Epidemiology: More people have allergies earlier in life; as people age, symptoms often become non-allergic ([08:22]).

Medication Allergies – The Penicillin Myth

• Penicillin Allergy: Up to 10% of Americans believe they are allergic, but about 90% are not truly allergic when tested ([09:26]).
  • Quote: “If you test them out, we estimate that about 90%...don’t have a true penicillin allergy.” — Dr. Rubin (09:26)
• Why the Mislabel?: Family history, childhood infections, or misattributed rashes are common causes.
• Implications: Mislabeling increases healthcare risks, including worse hospital outcomes, side effects from alternative antibiotics, and higher costs ([10:57]).

The Rise of Food Allergies

• Dramatic Increase: Food allergy diagnoses have more than tripled in the past 20-30 years ([12:37]).
  • Quote: "Diagnosis of food allergies have rapidly increased where food the rates have more than tripled over the past 20–30 years." — Dr. Rubin (12:37)
• Contributing Factors:
  • Delayed Introduction: New research (LEAP study) shows introducing allergenic foods like peanuts before age one can reduce allergy risk by up to 80% ([13:00]).
  • Microbiome Disruption: Increased rates linked to C-sections, early antibiotic/antacid use, and skin barrier conditions (eczema).
  • Other Factors: Processing of food and environmental pollutants contribute, but the issue is multifactorial ([14:37]).

Severity of Allergies: From Annoyance to Life-Threatening

• Anaphylaxis: Some allergies can trigger an immune cascade leading to anaphylactic shock and, rarely, death ([17:40]).
  • Quote: "It's how the immune system responds...does it trigger a cascade of events towards something called anaphylaxis." — Dr. Rubin (17:40)
• Epinephrine is vital for severe reactions, but even then, fatalities can occur.

Common Allergens and Symptoms

• Seafood Allergies: Symptoms can range from mild to severe (itching, swelling, vomiting, shock) ([19:29]).
• Pollen and Dust Mites: Pollen (trees, grass, weeds) is the most common outdoor allergen; dust mites predominate indoors ([22:41]).
• Persistence: Environmental allergies usually last, but some food allergies (egg, milk, wheat, soy) can be outgrown; peanuts/tree nuts/seafood tend to persist ([23:22]).

Environmental and Genetic Influences

• Genetics: Family history increases risk for allergies and asthma ([20:50]).
• Environmental Exposures: Pollution, housing conditions, and even gas stoves can increase allergy and asthma risk ([21:30]).

Allergy Management Tips

• Nasal Irrigation: Devices like NETI pots and saline rinses help clear allergens and reduce symptoms. Use only boiled/distilled water to avoid rare infections ([24:22]).
• Nasal Spray Technique: Don’t sniff deeply; if you can taste the spray, it’s not being applied correctly ([25:53]).
  • Quote: "If you're tasting it, that means you're wasting it. It's not going in the right part of your body." — Dr. Rubin (25:53)

Segment 2: Why We Self-Sabotage with Kati Morton

Patterns of Self-Sabotage and People Pleasing

• Common Behaviors:
  • Saying yes when desiring to say no
  • Over-apologizing, perfectionism, and trying to "shrink to fit spaces" ([29:45])
  • Quote: “It's kind of the patterns in my life where I find myself trying to shrink to fit spaces I don't belong.” — Kati Morton (29:45)
• Emotional Awareness: Often, we know these patterns are a problem because they're exhausting or stressful ([30:21]).

Origins of Self-Sabotaging Patterns

• Family and Upbringing: We learn blueprints for conflict, love, and self-worth from those who raise us ([31:30]).
• Recognition: Often, realization comes from patterns of stress, fatigue, or repeated unhappiness rather than a single “aha” moment ([32:34]).

Identifying and Changing Behaviors

• First Step: Notice how the pattern shows up (e.g., how often you say “sorry”) ([33:35]).
  • Example: Kati’s therapist asked her to track apologies, which revealed a much higher frequency than expected ([33:35]).
• Deeper Issues: Chronic people pleasing is often about feeling unworthy or like you need to "earn your place" ([37:47], [38:37]).
• Insight vs. Change: Simply knowing the behavior is illogical isn’t enough—transforming deeply held beliefs about self-worth is necessary.

Setting Boundaries vs. Being a Good Person

• Balance: Helpful, giving behavior becomes unhealthy if it’s compulsive or comes at our own expense ([45:10]).
  • Quote: "Lighting yourself on fire to keep someone else warm is probably the most common symptom." — Kati Morton (42:53)
• Key Insight: If your identity is rooted in being needed or useful to others, you may struggle to care for yourself or assert boundaries.

Recovering Self-Worth

• Importance of the “Why”: Without addressing core beliefs, surface-level changes aren’t durable ([40:40]).
  • Suppressing one behavior often leads to the problematic pattern surfacing elsewhere in life.
• Analogy: “You can’t pour from an empty cup”—self-care is essential to support others healthily ([46:38]).

Notable Quotes & Timestamps

• On the rise of food allergies:
  “Diagnosis of food allergies have rapidly increased where food the rates have more than tripled over the past 20–30 years.”
  — Dr. Rubin ([12:37])

• On misdiagnosed penicillin allergies:
  “If you test them out, we estimate that about 90%...don’t have a true penicillin allergy.”
  — Dr. Rubin ([09:26])

• On people pleasing:
  “Lighting yourself on fire to keep someone else warm is probably the most common symptom.”
  — Kati Morton ([42:53])

• On recognizing self-sabotaging patterns:
  "It's kind of the patterns in my life where I find myself trying to shrink to fit spaces I don't belong.”
  — Kati Morton ([29:45])

• On changing behaviors:
  "If you're tasting [nasal spray], that means you're wasting it. It's not going in the right part of your body."
  — Dr. Rubin ([25:53])

Key Timestamps

• 05:34—07:41: Difference between allergic and non-allergic rhinitis, medication implications
• 09:26—10:57: The penicillin allergy myth and real dangers of mislabeling
• 12:37—14:37: The dramatic rise in food allergies and contributing factors
• 17:40—20:08: Why and how allergies can be life-threatening
• 22:41—23:22: Most common allergens; allergies over a lifetime
• 24:22—25:46: Saline rinses and nasal spray best practices
• 29:35—31:30: Examples of self-sabotaging behaviors; family origins
• 37:47—40:26: Why ingrained beliefs fuel self-sabotage; importance of self-worth
• 42:53—44:50: Lighting yourself on fire to keep someone else warm—pattern recognition and consequences

Conclusion

This episode provides an engaging, actionable overview of allergies—why they’re more common, how they’re misunderstood, and how best to manage them. It also delivers deep psychological insights into why smart, capable people persist in unhelpful patterns, underlining the importance of self-awareness and self-compassion. Whether you suspect you have allergies or are curious about your own behavioral habits, the episode offers expert knowledge and useful tips for positive change.