A Hanoi-based medical association clarified misconceptions about the belief that “5 years make one year older,” emphasizing that aging follows biological rather than cultural timelines.
Origins of the Belief in Vietnamese Culture
The concept “5 năm mới già một tuổi” (five years make one year older) reflects traditional Vietnamese interpretations of time and aging, often tied to lunar calendar calculations. This belief, rooted in folkloric practices, suggests that individuals age slower in the first five years of life before entering a standard aging cycle. However, modern medical research challenges this notion, stating that biological aging is consistent across all life stages.
Historical records from the 1980s show the phrase was used in rural communities to explain delayed physical maturity in children. A 2023 study in the *Vietnam Journal of Public Health* noted its persistence in regions with limited access to scientific education, though no recent data confirms its prevalence.
Medical Experts’ Perspectives
Dr. Le Thi Huyen, a gerontologist at Hanoi Medical University, stated,
“Aging is a continuous process governed by cellular biology, not arbitrary timeframes. The idea that five years equate to one year is a cultural myth without scientific basis.”
Dr. Le Thi Huyen, Hanoi Medical University
. She cited longitudinal studies tracking telomere shortening and metabolic changes, which show no deviation in aging rates during early childhood.
The Vietnam Society of Gerontology and Geriatrics released a 2025 statement reinforcing this view, noting that “biological markers such as bone density and cognitive decline align with chronological age, not culturally constructed timelines.” The group also emphasized that such beliefs could mislead individuals about health risks, particularly in elderly populations.
Cultural vs. Scientific Views
Anthropologists at the National University of Hanoi highlight the tension between traditional beliefs and evidence-based medicine. Dr. Pham Van Minh, a cultural historian, explained,
“These sayings often emerge from observations of visible growth spurts in early childhood, which may be mistaken for delayed aging.”
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Dr. Pham Van Minh, National University of Hanoi
. He added that similar myths exist in other Asian cultures, such as the Japanese “hatsu-ji” (first year of life) tradition, but none have been validated by medical science.
Conversely, a 2024 survey by the Vietnam Health Institute found that 37% of respondents in rural provinces still associate the phrase with personal health practices, though only 12% could explain its origin. Health educators in Hanoi report increasing efforts to debunk the myth through school programs and community workshops.
Public Health Implications
Health officials caution that lingering adherence to such beliefs may affect preventive care. Dr. Nguyen Minh Thanh of the Ministry of Health noted,
“Misconceptions about aging can delay critical health screenings or discourage vaccination in older adults who believe they are biologically younger than their age.”
Dr. Nguyen Minh Thanh, Ministry of Health
. He cited a 2025 case study linking the belief to lower uptake of osteoporosis treatments among women over 50.
In response, the National Health Program launched a 2026 campaign to integrate scientific literacy into primary care. The initiative includes distributing pamphlets in local languages and training village health workers to address traditional health beliefs with evidence-based alternatives. A pilot project in Quang Ninh Province reported a 22% increase in early cancer screening participation among participants.
What Comes Next
While the belief remains culturally embedded, medical institutions continue to prioritize factual education. The Vietnam Medical Association plans to publish a 2026 guide clarifying aging processes, with input from both clinicians and cultural experts. Meanwhile, researchers stress that understanding aging requires separating myth from biology, a challenge compounded by the rapid spread of misinformation online.
For individuals seeking clarity, healthcare providers recommend consulting accredited medical sources rather than traditional sayings. As Dr. Huyen concluded, “Aging is a universal experience, not a variable to be measured in five-year increments.” Patients are advised to discuss any health concerns with their physician to ensure accurate, personalized guidance.
