Archive · 6 Sep 2026
Home Cooking Linked to Lower Dementia Risk After 65
Researchers in Japan studied older adults to learn about cooking and dementia.
They followed 10,978 people who were at least 65 years old.
The study lasted six years.
During that time, 1,195 people developed dementia serious enough to need long-term care.
People who cooked at home at least once a week had a lower risk than people who cooked less often.
This shows an association between home cooking and dementia risk.
It does not prove that cooking directly prevents dementia.
The findings were published in a medical research journal.
A Japanese study examined 10,978 adults aged 65 and older.
Researchers followed participants for six years.
During the study, 1,195 participants developed dementia requiring long-term care.
Those who cooked at home at least weekly had lower dementia risk.
The research was published in the Journal of Epidemiology and Community Health.
- Who
- Researchers studied 10,978 adults aged 65 and older in Japan.
- What
- The study found that cooking at home at least once a week was associated with a lower risk of dementia requiring long-term care.
- When
- Participants were followed for six years; the research was published in the Journal of Epidemiology and Community Health.
- Where
- Japan.
- Why
- Researchers investigated whether home cooking was associated with dementia risk in older adults.
- Study population
- 10,978 adults aged 65 and older
- Study location
- Japan
- Follow-up period
- Six years
- Dementia cases
- 1,195 participants developed dementia requiring long-term care
- Lower-risk group
- Participants who cooked at home at least once a week
- Publication
- Journal of Epidemiology and Community Health