New study explains importance of muscle and healthy visceral fat levels for maintaining youthfulness of the brain

A recent study has explored how our body composition may affect brain health. Researchers examined 1,164 adults using full-body MRI scans combined with artificial intelligence to determine if muscle mass and fat distribution are connected to the apparent age of the brain. The central question was whether stronger bodies correspond to younger-looking brains.

The findings revealed that individuals with more muscle and lower levels of deep abdominal fat tend to have brains that appear biologically younger. This suggests that practices promoting muscle growth and fat reduction could also benefit brain health. Simple actions, like incorporating resistance exercises with adjustable dumbbells at home, may contribute positively.

The Research Findings

Presented at the upcoming annual meeting of the Radiological Society of North America, the study indicates that adults with greater muscle mass generally show brains that look younger biologically. Conversely, those with a higher ratio of visceral fat to muscle tend to exhibit older-looking brains. Interestingly, subcutaneous fat, stored under the skin, showed no significant connection to brain age.

Researchers emphasized that maintaining a healthy balance of muscle and visceral fat may reduce the risk of neurodegenerative diseases, including Alzheimers. Senior study author Cyrus Raji, M.D., Ph.D. stated, Bodies with more muscle and less hidden belly fat are more likely to have youthful, healthy brains.

Practical Tips for Muscle and Brain Health

Certified personal trainer Josh Schlottman (CSCS) provided actionable advice to help build muscle and reduce deep abdominal fat. His recommendations focus on three key strategies:

1. High-Intensity Interval Training (HIIT)

Josh explains that interval sprinting is highly effective for eliminating visceral fat and simultaneously increasing muscle mass faster than traditional workouts. Beginners can try the Jeffing technique, which alternates brief fast runs with walking or light jogging, building speed and endurance safely.

2. Strength Training Combined With HIIT Circuits

Using compound exercises like squats, lunges, push-ups, and pull-ups in circuit formats allows simultaneous muscle growth and calorie burning. High-intensity resistance circuits build muscle while accelerating fat loss more efficiently than traditional weight lifting, says Josh.

3. Proper Nutrition

Protein is essential for muscle growth, satiety, and metabolism. Josh recommends prioritizing protein intake and complementing it with fiber-rich vegetables such as spinach, broccoli, cauliflower, and beets to maintain fullness without overeating.

Author’s Analysis: Muscle Mass, Fat Distribution, and Brain Age

The recent study connecting body composition to brain health highlights a clear relationship between physical fitness and neurological aging. Data from 1,164 adults show that higher muscle mass and lower visceral fat correlate with biologically younger brains. This provides concrete evidence that body health and brain health are closely linked.

Notably, visceral fat—not subcutaneous fat—is the key factor influencing brain age. This distinction reinforces the importance of targeting deep abdominal fat through exercise and nutrition rather than focusing solely on overall body weight. Resistance training and high-intensity interval exercises appear particularly effective for achieving this balance.

From a practical perspective, maintaining muscle while reducing hidden fat may serve as a preventive measure against neurodegenerative diseases such as Alzheimer’s. Incorporating strength and HIIT circuits, alongside protein-rich nutrition and fiber, can offer measurable benefits. The study underscores that simple, consistent interventions at home or in the gym could have long-term impacts on brain health, beyond traditional cardiovascular focus.

Sources:

• Recent study reveals why muscle and healthy visceral fat levels matter for keeping the brain biologically young