Triggers (Environmental Reminders)

The Science Behind Triggers (Environmental Reminders)

Triggers, as defined by Jonah Berger in his 2013 book *Contagious: Why Things Catch On*, are the environmental cues and everyday stimuli that prompt people to think about a related product, behaviour, or idea. The core insight is deceptively simple: the more frequently a trigger occurs in someone's daily environment, the more often they will think about the associated concept, and the more likely they are to act on it. This is not about bombarding people with advertising. It is about strategically linking your service to something the patient already encounters constantly.

The psychology behind triggers draws from decades of associative memory research. Our brains are fundamentally pattern-matching machines, organising information in vast networks of associations. When we encounter a stimulus, a smell, a sound, a physical sensation, the brain automatically activates related nodes in that network. This is why the scent of sunscreen might instantly transport you to a childhood beach holiday. Berger applied this cognitive architecture to the question of why some ideas spread organically and others die quietly, finding that products and behaviours linked to high-frequency environmental cues enjoyed far greater word-of-mouth and recall than those with no such associations.

Berger's analysis revealed a telling contrast between two peanut butter brands. Jif, which is linked to the high-frequency trigger of making sandwiches for children (an almost daily activity for many families), consistently outperforms competitors in word-of-mouth measures, not because of superior advertising, but because the trigger fires so often. Kit Kat ran a highly successful campaign deliberately engineering a trigger by associating the chocolate bar with having a coffee break. Sales climbed significantly after the campaign embedded the phrase 'Have a break, have a Kit Kat' into a ritual millions of people perform several times a day. The lesson: the trigger does the heavy lifting of keeping you top-of-mind.

For allied health practices, this principle carries profound implications for patient retention. Your lapsed patients are not indifferent to their health, they are simply operating on autopilot, and their daily routines contain no reliable prompt to book that overdue appointment. The morning stiffness when they get out of bed, the ache that flares when they sit at their desk for too long, the twinge in their knee on the stairs, these physical sensations are already firing every day. Your job is to hijack those existing triggers and wire them, through deliberate communication, directly to the thought of booking with your clinic.

The Research

How to Apply This in Your Practice

The first step in applying triggers to patient re-engagement is identifying which everyday physical sensations or daily rituals your lapsed patient population most commonly experiences. For a physiotherapy or chiropractic clinic, the richest territory is bodily sensation, the stuff patients feel regardless of whether they are thinking about their health. Lower back stiffness when rising from a chair after long periods of sitting, neck tension during or after screen time, foot pain when first stepping out of bed in the morning, shoulder tightness when reaching overhead. These are not just symptoms; they are high-frequency, unavoidable triggers that fire every single day for a significant portion of your lapsed patient base.

Once you have identified the relevant triggers, your re-engagement communications should deliberately name them and link them to the action of booking. This is where your message copy becomes transformative rather than transactional. Instead of a generic 'We haven't seen you in a while, book now' SMS, consider: 'Every time you feel that familiar stiffness getting out of the car, that's your body sending a signal. It's been a while since we've seen you, let's check in before it becomes something bigger. Book in this week: [link].' Or for a podiatry patient: 'Next time you feel that ache in your heel with your first steps in the morning, use it as your reminder, it's been six months since your last visit. Your feet are worth 45 minutes. [Book here].' The message does not just invite action; it plants a cognitive anchor so that the next time the physical trigger fires, the patient thinks of your clinic.

From a workflow perspective, this approach requires you to segment your lapsed patient list by their presenting condition or treatment area, so you can match the trigger language to what is actually relevant to each person. A patient who came to you for plantar fasciitis will not relate to a message about neck pain, and an irrelevant trigger simply will not fire. Your practice management software should allow you to filter lapsed patients by diagnosis or treatment type. Create two to three reactivation message templates tailored to your most common presenting conditions, lower back and neck pain for physio and chiro, foot and heel issues for podiatry, shoulder and joint complaints for osteopathy, and deploy them accordingly. This segmentation is not just good manners; it is the behavioural science working correctly.

Finally, consider extending the trigger strategy beyond SMS and email into the physical environment. If your clinic sends discharge or end-of-care summaries, include a line that deliberately anchors a future trigger: 'When you notice your [symptom] returning or feel tension building in your [area], treat that as your body's check-in reminder and get in touch.' This plants the seed at the moment the patient is most engaged, during active care, so that when the trigger fires weeks or months later, the association with your clinic is already established in their memory network. The goal is to make your clinic's name the automatic thought that follows every relevant physical sensation your patient experiences.

Seeing It in Action

Your Action Plan

1. 1Segment your lapsed patient list by presenting complaint or body area treated, so your trigger-based messaging is anatomically relevant to each person's lived experience.
2. 2For each patient segment, identify the one or two most common daily physical sensations associated with their condition, morning stiffness, post-sitting ache, end-of-day tension, and write these into your message copy explicitly.
3. 3Rewrite your reactivation SMS and email templates to name the trigger sensation first, then link it directly to the action of booking, using language like 'Next time you feel... use that as your reminder to book in.'
4. 4Add a trigger-anchoring sentence to every discharge summary or end-of-care communication, so that the association between the patient's physical sensations and your clinic is planted while the therapeutic relationship is still fresh.
5. 5Review your reactivation message send times, deploy communications on Monday mornings or post-weekend, when patients are most likely to have recently experienced a relevant physical trigger after a change in activity levels.