Recent research from the University of South Australia challenges the widely held belief that forming a new habit takes only 21 days. Instead, the study reveals that habit formation often requires 59 to 66 days on average, with some individuals taking 335 days to establish a lasting routine.
This finding holds significant implications for public health strategies, particularly in addressing chronic diseases like type 2 diabetes, cardiovascular disease, lung conditions, and stroke. These ailments, which burden Australia’s healthcare system considerably, are largely preventable through lifestyle modifications. The extended timeline for habit formation underscores the need for sustained efforts to ensure lasting behavioural change.
Dr Ben Singh, a leading researcher on the study, highlights that the idea of a “21-day habit” is a myth:
Morning routines, such as engaging in regular physical activity or adopting a nutritious breakfast habit, are particularly well-suited to integration into daily life. These habits are likely to stick when embedded in a structured routine and are associated with positive emotions. Dr Singh emphasizes the importance of proactive planning:
Although habit formation timelines differ among individuals, persistence beyond the initial month is key. These insights provide a foundation for developing public health programs that promote sustainable behaviour changes. By focusing on strategies that align with realistic timelines and emphasize consistent motivation, health initiatives can better support individuals in preventing chronic disease and improving long-term well-being.