Category: Companions
The Gut Microbiome
The trillions of bacteria in your gut actively influence cravings, hunger, and fat storage. Research by Alcock shows different bacteria request their preferred fuel — sugar-loving bacteria drive sugar cravings. Changing what you eat changes your microbiome, which changes what you crave. Dietary changes begin shifting bacterial populations within 24-48 hours. This companion covers the gut-brain axis, how bacteria influence cravings, the research, and creating positive feedback loops. (3 min read)
The Hunger Tolerance
Hunger tolerance is trainable. If you eat at the first sign of hunger, you’ve conditioned zero tolerance. Research by Cummings shows hunger comes in waves — rising, peaking, and falling within 20-30 minutes. Building tolerance means deliberately experiencing hunger and not eating, proving it’s uncomfortable but not dangerous. Start with 15-minute delays; extend gradually. This companion covers why tolerance is low, reframing hunger, building tolerance, and what you’ll discover. (3 min read)
The Default Meals
Defaults determine outcomes. When tired or unprepared, you fall back on defaults — the meals you make without thinking. Thaler and Sunstein’s choice-architecture framework — their book’s case rather than an experiment — treats defaults as powerfully shaping behavior. If your defaults are healthy (eggs and vegetables, rotisserie chicken and salad), unplanned eating is fine. Designing good defaults is high-leverage change. This companion covers why defaults matter, auditing yours, what good defaults look like, and building better ones. (3 min read)
The Midnight Fridge
Close it and go back to bed. You’re not genuinely hungry — you’re half-asleep, operating on autopilot. Night eating is rarely about hunger. Eating at 2am reinforces the pattern and disrupts sleep and metabolism. The intervention is simple: recognize what’s happening, close the door, return to bed. If recurring, address underlying sleep and habit issues. This companion covers what’s actually happening, why eating is the wrong response, and preventing recurrence. (3 min read)
The Addiction Debate
The evidence is mixed but suggestive. Research by Gearhardt shows highly palatable foods engaging the brain reward pathways addictive drugs engage — in an imaging study of 39 young women. Some people show addiction patterns: craving, loss of control, continued use despite consequences. Whether this constitutes clinical “addiction” is debated, but the behavioral and neurological parallels are real. The label matters less than the pattern. This companion covers the case for and against food addiction, and practical implications. (3 min read)
The Grocery Store Layout
The store’s layout is intentional: whole foods line the perimeter while processed foods fill the center aisles. Stores optimize for profit, not health — high-margin processed foods get prime center placement. Shopping the perimeter naturally steers you toward healthier choices. Know what pulls you into the center and have a strategy. This companion covers the perimeter principle, why the layout exists, what pulls you in, and strategies for navigation. (3 min read)
The Peer Pressure
Hold your ground without making it a scene. A simple “No thanks, I’m good” is enough. Research by Cialdini on social pressure shows friends often seek validation for their own indulgence. If pressure continues, use the broken record: repeat your decline calmly without elaboration. Real friends accept your choices; persistent pressure says more about them. Your health decisions aren’t up for group vote. This companion covers why pressure happens, simple responses, what not to do, and reframing. (3 min read)
The Body Weight Equation
The energy balance equation is physics — it must be true. But it’s incomplete, because “calories in” and “calories out” aren’t independent variables. Hall’s modeling work shows expenditure adapts to intake, so both terms move at once; the familiar “3,500 calories equals a pound” rule treats expenditure as fixed and so underestimates the body’s response, which is why plateaus arrive early. Eating less is met with lower resting expenditure, rising ghrelin, and muscle that extracts more work per calorie — a formerly obese person needs roughly 300-400 fewer calories a day than someone who was never obese. Across 29 long-term…
The Thoughtful One
The thoughtful one pauses between stimulus and response. Kahneman’s framework distinguishes automatic System 1 thinking from deliberate System 2 — a named author’s model rather than a finding this library holds. Before eating, they ask: Am I hungry? What do I actually want? How will I feel after? This pause — even a few seconds — interrupts automatic eating and creates space for choice. Thoughtful eating isn’t slow; it’s conscious rather than reflexive. This companion covers automatic versus thoughtful, the questions that create the pause, and building it. (3 min read)
The Sabotaging Thoughts
Bad food choices follow thoughts: “I deserve this,” “One won’t hurt,” “The day is ruined.” Research by Beck shows these cognitive patterns function as permission — bridging “I shouldn’t” to actually eating. Catching the thought is easier than stopping the behavior. Name your sabotaging thoughts, track patterns, create counter-thoughts. The goal isn’t to never have them, but to recognize them as thoughts, not truths. This companion covers the thought-behavior chain, common sabotaging thoughts, and catching them earlier. (3 min read)