Habit Formation in Older Adults

Abstract

Transition from adherence to habit formation is critical for promoting sustainable dietary changes among older adults. While adherence to health regimens often relies on conscious effort and external motivation, habits are automatic behaviors triggered by consistent cues, reducing the need for ongoing effort. A common misconception is that older adults cannot form new habits due to cognitive decline with age. However, older adults possess valuable strengths, such as strong self-regulation and the ability to delay gratification, that make them well-equipped for habit formation. This commentary outlines how healthcare providers can leverage these strengths of older adults and employ a cue-behavior-reward loop to help them integrate consistent, sustainable dietary changes.

“Healthcare providers can leverage older adults’ high adherence to create more sustainable health interventions.”

Introduction

Promoting healthy eating behaviors is crucial for reducing the risk of various medical conditions and chronic diseases. ¹ In this issue, Goncalves et al discussed the benefits of anti-inflammatory diets and antioxidant intakes in decreasing the risk of age-related hearing loss and enhancing quality of life. ² While this study emphasizes the importance of dietary interventions, it also raises questions about how older adults can adopt and sustain such behaviors.

In current practices, adherence is a primary focus of dietary interventions. Adherence is the extent to which an individual follows a prescribed health regimen that often depends on external motivation, which can vary over time and, thus, far too frequently, does not lead to long-term change in desirable health outcomes. ³ For example, initial adherence to a healthy diet in interventions that only provided dietary instructions has been found to be high, but it often declined over time. ³ This pattern suggests that focusing solely on adherence may be insufficient to produce lasting health benefits. On the contrary, habits are the form of behaviors that have become automatic responses to specific cues, often with little conscious effort or intention, leading to more effective and lasting behavioral changes. ⁴ Furthermore, habit formation is recommended as a strategy to increase adherence to medical recommendations in patients with chronic disease. ⁵

Despite the importance of habit formation for long-lasting behavior change, it is significantly understudied in older adults as many may believe they cannot form new habits as effectively as younger populations.^6,7 Contrary to this misconception, older adults have better routines (e.g., repetition of daily pill intake) and higher self-regulation than younger adults, which supports the habit formation.^7,8 Therefore, in this commentary, we discuss habit formation as a strategy for following dietary recommendations among older adults.

Adherence and Habit

Adherence and habit formation represent two distinct yet interconnected approaches to behavior change. Adherence involves both the ability and willingness to follow a prescribed therapeutic regimen, ⁹ requiring conscious intent from patients. ¹⁰ For example, when diagnosed with high cholesterol, an individual may have to limit red-meat consumption, which often requires careful thought of meal alternatives while shopping. ¹¹ Continued adherence requires increasing commitment and self-motivation, especially as the demands of the lifestyle changes become more intense. ¹² Over time, motivation falters or forgetfulness becomes an obstacle in maintaining this adherence. ¹³

Habits do not depend on conscious effort to drive behavior. ¹⁴ Instead, habits are behavioral patterns that individuals do automatically in response to a contextual cue that develop through consistent, repeated actions: for example, automatically washing hands (action) after using the toilet (contextual cue).^15,16 Once a habit is formed, individuals engage in action with minimal forethought ¹⁷ ; they do so out of second nature. ¹⁶ For example, when prescribed a daily pill intake, patients often instructed rely on adherence, actively reminding themselves to take their medication (e.g., purchase pillbox, setting alarms).^18,19 In contrast, taking pills can be formed as a habit in support of a contextual cue such as before breakfast. In this example, taking medication is no longer a deliberate choice but rather a reflexive action triggered by the breakfast cue. ²⁰ Additionally, once formed, this habit helps individuals remain consistent with their medication routine, as habitual behaviors operate independently of conscious thought, offering protection against forgetfulness. ²¹ Therefore, leveraging habit formation can be a superior strategy for implementing and sustaining health-related behaviors.

Habit Formation: Cue-Behavior Loop

To transition a behavior from adherence to a long-term habit starts with a cue-behavior loop.^15,22 Cues (e.g., time of day or environment) play a pivotal role in this process by signaling the brain to initiate the desired behavior.^23,24 For instance, placing healthy food options in visible areas of the kitchen acts as a contextual cue that provides a consistent visual reminder to prepare a healthy meal.^25-27 These cues, which can be tied to specific times of day or events, act as automatic signals that trigger associated behaviors—such as eating vegetables at each meal—at the same time each day, making the behavior more predictable and easier to adopt. ²⁸

The key to habit formation is repetition in a consistent context, which strengthens the association between the cue and the behavior. ²⁹ By performing the behavior repeatedly when the cue is encountered, the action gradually becomes automatic. ³⁰ Over time, this process increases the automaticity of the behavior, reducing the need for conscious effort and enhancing long-term adherence. For example, consistently eating a healthy snack at the same time each day or making time for physical activity after lunch gradually integrates these behaviors into routine. ¹⁵ With continued repetition, individuals no longer need to actively think about the behavior, as it becomes ingrained in their daily life. This integration into a stable routine helps ensure the behavior becomes a sustainable, long-term habit. ¹⁵

Misconceptions to Habit Formation in Older Populations

Many believe that older adults are incapable of forming new habits. This prevalent misconception is most likely driven by the idea that cognitive decline is inevitable with age. ³¹ This misconception can lead healthcare providers to hesitate in encouraging lifestyle changes in older patients, doubting their ability to sustain new behaviors. ⁶ Consequently, older adults may be perceived as resistant to change or incapable of adopting new healthy behaviors, which can contribute to feelings of inadequacy and reduce their motivation to pursue positive changes.^15,32-34 Unfortunately, this misconception represents a missed opportunity for promoting sustainable behavior change among older adults, who actually possess unique strengths that make them well-suited to habit formation.

Older adults often exhibit stronger impulse control and more effective coping strategies, both of which are key components of self-regulation.^35-37 Self-regulation is the effort to balance self-control against temptations and impulses that can impede goal pursuits. ³⁸ While self-regulation is found in individuals of all ages, it is particularly prevalent in older adults. ³⁷ This makes them more likely to follow routines consistently, ⁷ which in turn equips them better for habit formation. By capitalizing on their natural adherence to actions, older adults are more likely to develop behaviors that can manifest into habits.

Behaviors are reinforced through rewards, which are specific to each individual. ³⁰ While younger individuals often require immediate rewards to maintain behaviors, older adults typically exhibit a greater capacity for delayed gratification. ³⁷ For older adults, rewards might come in the form of long-term health benefits or positive feedback from healthcare providers, family, or friends. ³⁹ This ability to wait for rewards allows older adults to sustain behaviors without immediate reinforcement, creating a modified cue-behavior-reward loop where the benefit, though delayed, remains effective in reinforcing the habit.

Conclusion

In older adult patients, focusing on habit formation rather than adherence is likely to result in more consistent and long-term change. Implementing cue-behavior-reward loop enables older adults to develop automatic reliance on healthier choices, improving overall health and lowering disease risks.^1,7 Healthcare providers can leverage older adults’ high adherence to create more sustainable health interventions. By encouraging the implementation of cues and behavior repetition during active interventions, providers can support older adults in forming and sustaining healthy eating behaviors. This will promote long-term health benefits as the behavior becomes habitual. This approach offers a model for healthcare providers to support long-lasting changes in dietary behaviors and promoting better health outcomes for older adults.