Erwachsene über 65, deren Gewicht um mehr als 5% abnimmt, können einen schnelleren kognitiven Rückgang verzeichnen. Menschen, deren Gewicht die am wenigsten variierte die niedrigste Menge an kognitiv
https://www.psu.edu/news/health-and-human-development/story/weight-change-may-contribute-cognitive-decline-older-adults
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Adults over 65 whose weight decreases or fluctuates by more than 5% may experience faster cognitive decline, according to researchers in the Department of Nutritional Sciences at Penn State. The team published their findings in the journal Obesity.
“We examined 11 years of data related to weight, body mass index and waist circumference,” said Muzi Na, associate professor of nutritional sciences and senior author of the study. “We conducted three different types of analysis on how those measures compared to cognitive decline. Any way we looked at the data, the relationship was crystal clear — the more a person’s weight varied from year to year, the faster that person experienced cognitive decline.”
The researchers analyzed data from 4,304 older adults who participated in the National Health and Aging Trends Study between 2011 and 2021. In addition to the body composition metrics, the data also included measurements of memory, orientation and executive function. Na and the team combined those data points into a composite measure of cognitive function for their analyses. Aside from a couple small adaptations due to the COVID-19 pandemic, these measures were collected annually across the 11 years of data used in the current study.
[https://onlinelibrary.wiley.com/doi/10.1002/oby.24309](https://onlinelibrary.wiley.com/doi/10.1002/oby.24309)
Emphasis added.
>**Intentional weight loss in older individuals with obesity or overweight may benefit cognitive function** [[42](https://onlinelibrary.wiley.com/doi/10.1002/oby.24309#oby24309-bib-0042)]. However, unintentional weight loss may be detrimental, as evidence has suggested that obesity in later life is associated with a lower risk of dementia [[43](https://onlinelibrary.wiley.com/doi/10.1002/oby.24309#oby24309-bib-0043)], highlighting the potentially protective role of maintaining BW in older adults.
>We did not observe any differential associations between variability or patterns in nutritional status and cognitive trajectory based on the intentionality of weight loss. This may be because only about one-half of the included participants ever reported the intentionality of their weight loss during the follow-up period, resulting in limited statistical power. **In our cohort, intentional weight loss may reflect lifestyle changes, whereas unintentional weight loss in older adults could indicate underlying illnesses or carry distinct cognitive implications** [[44](https://onlinelibrary.wiley.com/doi/10.1002/oby.24309#oby24309-bib-0044)].
>Although we adjusted for the presence of several chronic conditions (e.g., cancer, diabetes, heart disease) and socioeconomic variables in our analysis, **we were unable to fully account for the potential confounding effects of acute illnesses, medication side effects,** other mental health conditions (e.g., depression, delirium, loneliness), or changes in the home environment (e.g., social problems or relationships) on BW fluctuations and cognitive decline [[45](https://onlinelibrary.wiley.com/doi/10.1002/oby.24309#oby24309-bib-0045)].
>Future studies should address these factors, potentially by linking to external databases (e.g., electronic medical records) or incorporating additional data collection during follow-up.
Now i really question my idea to take up sports again after retirement.
Misleading headline that doesn’t clarify unintentional weight loss is usually an early sign of declining health. This doesn’t mean that losing weight is causative. The paper itself does make the distinction. This is particularly relevant since cardiovascular disease is associated with dementia.
I mean yeah if you are losing weight you’re also losing muscle mass, which is a direct correlation to overall health.
It’s possible for a teen to 30 something to simultaneously gain muscle and drop fat, but 60-80? Not happening.