Muscle Mass and Lower Visceral Fat Associated with Younger Brain Age
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Researchers have found a correlation between greater muscle mass,a lower ratio of visceral fat to muscle,and a younger biological brain age. These findings, to be presented at the annual meeting of the Radiological Society of north America (RSNA), suggest a link between body composition and brain health. Visceral fat is the fat stored deep within the abdomen, surrounding vital internal organs.
The Connection Between Body Composition and Brain Age
The study indicates that individuals with healthier bodies – characterized by more muscle mass and less visceral fat – tend to exhibit signs of a younger brain age.This suggests that maintaining a healthy body composition may contribute to preserving cognitive function as people age. “Healthier bodies with more muscle mass and less hidden belly fat are more likely to have healthier brains,” explains Dr. Yijin wang, a professor of radiology at the University of Texas Health Science Center at San Antonio and lead author of the study. Radiological Society of North America
What is Visceral Fat and Why Does it Matter?
Visceral fat, unlike subcutaneous fat which lies just under the skin, is metabolically active. This means it releases hormones and inflammatory substances that can negatively impact overall health, including brain health. Excess visceral fat is linked to increased risk of conditions like heart disease,type 2 diabetes,and cognitive decline. Harvard T.H. Chan School of Public Health
How was the Study conducted?
The research team analyzed data from the UK Biobank, a large-scale biomedical database containing genetic and health information from half a million UK residents. They examined data from over 12,000 participants, assessing their body composition using DXA scans (dual-energy X-ray absorptiometry) and comparing it to MRI scans of their brains. Brain volume and cortical thickness where used as indicators of brain age. UK Biobank
Key Findings
- A higher muscle mass was associated with a younger brain age.
- A lower visceral fat to muscle ratio was also linked to a younger brain age.
- These associations remained notable even after accounting for factors like age, sex, ethnicity, and education.
Implications and Future Research
These findings highlight the importance of maintaining a healthy lifestyle, including regular exercise and a balanced diet, to support both physical and cognitive health. While this study demonstrates a correlation,further research is needed to determine whether increasing muscle mass and reducing visceral fat can directly cause a reduction in brain age. Future studies could explore interventions aimed at improving body composition and their impact on brain health.
FAQ
Q: What is biological brain age?
A: Biological brain age refers to the estimated age of your brain based on its structure and function, as opposed to your chronological age. It can be influenced by lifestyle factors and health conditions.
Q: How can I reduce visceral fat?
A: Reducing visceral fat involves a combination of diet and exercise. Focus on consuming a healthy diet rich in fruits, vegetables, and lean protein, and engage in regular physical activity, including both cardiovascular exercise and strength training.
Q: Is muscle mass the only factor affecting brain age?
A: No, muscle mass is just one factor. Other factors like genetics, diet, sleep, and cognitive stimulation also play a role in brain health and aging.
Published: 2025/11/26 01:10:28