Why you handle stress, sleep, mood, and recovery the way you do. And why the person beside you, living the very same week, ends up somewhere completely different. Two settings, four baseline patterns, and one of them is yours.
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Two people go through the same stressful stretch. The same deadline, the same bad news, the same run of nights with too little sleep. We tend to explain the gap with character: she is tougher, he is too sensitive. It is usually not character. It is chemistry, and most of the settings were in place before you were born.
Two settings do most of the work: how much signal your nervous system takes in, and how fast your body clears stress chemistry once it has. Put them together and you get four baseline patterns. Every one of them is somebody's superpower, and every one has a cost attached to the same strengths.
High sensitivity · Slow clearance
The Deep Processor
The most thorough person in the room, still awake at 3 a.m.
High sensitivity · Fast clearance
The Restless Achiever
Sharp under pressure. Hollow in the quiet.
Low sensitivity · Slow clearance
The Steady Anchor
Hard to rattle. Can drift without noticing.
Low sensitivity · Fast clearance
The Fast Mover
Great at starting, weaker at closing.
Your only job is to notice which one sounds like the inside of your head.

The map

One of the four, in full

The honest part
The four patterns are the first thing I read in a genome, because stress chemistry runs through sleep, mood, energy, and how you recover. The guide gives you the words for something you have probably felt your whole life. Nothing in it is deterministic: a pattern is a lean, not a verdict, and leans can be worked with.
Jennifer Little-Fleck, CFGP, BcID. Executive Biologist and Certified Functional Genomic Practitioner, with three decades in healthcare sales, research and medical writing. Specializes in connecting mood and behavior genetics to overall health.
Educational, not medical advice. For questions about a diagnosis or a medication, talk with your physician.