


What Is Mental Wellness and Why Is It Important?
Mental well-being is a crucial part of total health, referring to a positive emotional, mental, and social state of being. It goes beyond just not having mental issues. It's about your capacity for reaching your potential, dealing with daily stresses, working effectively, and contributing positively to your community. The World Federation for Mental Health (WFMH) defines mental well-being as the ability to live a balanced, fulfilling, and productive life.
Mental well-being profoundly influences our core experiences. It shapes how we think, feel, and act, determining how we handle stress, maintain relationships, and make daily choices that impact our everyday functioning.
The significance of mental well-being cannot be overstated. It forms the foundation for academic and professional success, emotional regulation, and long-term resilience. Importantly, mental and physical health are closely linked and enhance each other. Poor mental health increases susceptibility to physical illness and negatively affects quality of life, while robust mental well-being strengthens both psychological and physical health outcomes.
The Connection Between Mental and Physical Health
Mental and physical health are closely connected in a two-way system, where each constantly affects the other through biological, behavioural, and social factors. Changes in mental state can trigger measurable physical responses—just as medical conditions can profoundly influence emotional well-being.
Strong evidence for this connection comes from a peer-reviewed study in *Social Science & Medicine* that analysed the relationship between physical and mental health. The research found that physical well-being primarily influences mental state through indirect pathways, mediated by:
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Lifestyle behaviours (such as physical activity),
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The body’s stress response,
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Levels of social engagement.
Crucially, this relationship works both ways, creating a feedback loop where poor mental health can further deteriorate physical health outcomes and vice versa.
Biological Mechanisms
Prolonged stress triggers sustained cortisol release, the body’s primary stress hormone.
This leads to:
- Suppressed immune function,
- Increased systemic inflammation,
- Higher risk of heart disease.
Healthy habits counter these effects:
- Exercise boosts serotonin and dopamine (affecting mood and drive),
- Balanced nutrition supplies the raw materials for neurotransmitter production while reducing inflammation.
These combined actions promote cognitive function, emotional balance, and stress resilience.
Nutrition and Mental Wellness
Nutrition is vital for brain health since the brain uses a lot of energy despite making up just 2% of body weight—it consumes about 20% of total energy and oxygen. This high demand necessitates continuous nutrient supply to:
- Support neural structures,
- Produce neurotransmitters,
- Shield cells from damage.
Research by Harvard Health consistently shows a strong link between dietary patterns and cognitive performance. Diet influences mental well-being by:
- Providing materials for neurotransmitter production,
- Regulating brain inflammation,
- Promoting healthy blood flow to brain tissue.
Findings indicate that diets rich in whole, unprocessed foods can slow cognitive decline, in contrast to diets high in ultra-processed foods, sugar, and unhealthy fats.
Brain-Supporting Foods
- Fatty fish (like salmon and sardines) – High in omega-3s (DHA/EPA), key for brain cell structure and neuron signalling.
- Berries – Packed with flavonoids, strong antioxidants that boost memory and slow cognitive aging.
- Leafy greens (spinach/kale) – Rich in vitamin K, lutein, and folate—all tied to slower mental decline.
-Nuts and seeds – Rich in healthy fats, antioxidants, and vitamin E to shield brain cell membranes from oxidation damage.
- Whole grains (like oats and quinoa) – Offer stable brain energy with slow-release glucose, fuelling concentration and mood stability.
Fun fact: Blueberries are known to improve communication between brain cells thanks to their high antioxidant levels. (Healthline).
Why Eating Disorders Are a Mental Health Issue
Eating disorders, including anorexia nervosa and bulimia nervosa, are severe psychiatric illnesses characterized by profound psychological distress. They involve:
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Distorted body image,
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Intense fear of weight gain,
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Dangerous eating behaviours such as severe restriction or binge–purge cycles.
Poor nutrition directly harms brain function, creating a harmful cycle. It drains vital amino acids, vitamins, and minerals necessary for producing neurotransmitters like serotonin and dopamine. This disruption:
- Reduces concentration,
- Worsens emotional control,
- Raises anxiety and depression risk.
Full recovery necessitates both psychological support and structured nutritional rehabilitation. This involves providing the brain with the necessary nutritional components to heal and function efficiently. Proper nutrition is widely acknowledged as a core aspect of mental health treatment and a foundation for emotional stability.
Exercise, Happiness, and Brain Chemistry
Physical activity's sense of well-being results from a coordinated biochemical response:
- Endorphins: These natural painkillers-and-mood-boosters, reduce stress and promote calmness.
- Adrenaline: Heightens alertness, concentration, and drive.
- Growth hormone: Supports brain cell repair and strengthens neural connections crucial for learning and memory.
Regular physical movement also significantly boosts neuroplasticity, allowing the brain to create and reconfigure synaptic connections. This adaptability is vital for learning, resilience in the face of emotional stress, and dealing with life's changes effectively.
Consistent physical activity is tied to:
- Reduced symptoms of anxiety and depression,
- Enhanced sleep quality,
- Greater capacity to manage stress.
The World Federation for Mental Health identifies physical exercise as a highly effective non-pharmacological method for safeguarding and improving mental wellness.
How to Nourish and Maintain Mental Wellness
Mental well-being is maintained through daily, all-around practices cantered on essential pillars:
- Nutrition: A balanced diet with whole foods provides nutrients needed for neurotransmitter production and brain protection.
- Movement: Regular physical activity stabilizes mood, boosts cognition, and strengthens stress resilience.
- Rest: Sufficient quality sleep is crucial for emotional balance, memory strengthening, and neurological recovery.
- Stress Management: Techniques like mindfulness, social connection, and consistent daily routines support emotional stability.
- Professional Support: Seeking assistance from mental health specialists can be critical for long-term wellness when challenges persist.
Final Takeaway
Mental well-being is a dynamic state shaped by biological, psychological, and lifestyle factors. It's closely linked to physical health and relies on four key supports:
- Nutrition for proper fuel,
- Exercise for movement,
- Sleep for rest,
- Stress management and professional support.
Maintaining better mental health is more than just willpower; it's about developing a way of living that meets the brain's intricate needs.






References
American Psychiatric Association. (2013). Diagnostic and statistical manual of mental disorders (5th ed.). Arlington, VA: American Psychiatric Publishing.
Healthline. (n.d.). Brain foods: The best foods for brain health. Retrieved 2025, from https://www.healthline.com/nutrition/11-brain-foods
Harvard Health Publishing. (n.d.). Nutritional psychiatry: Your brain on food. Harvard Medical School. Retrieved 2025, from https://www.health.harvard.edu/blog/nutritional-psychiatry-your-brain-on-food-201511168626
Ohrnberger, J., Fichera, E., & Sutton, M. (2017). The relationship between physical and mental health: A mediation analysis. Social Science & Medicine, 195, 42–49. https://doi.org/10.1016/j.socscimed.2017.11.008
World Federation for Mental Health (WFMH). (n.d.). What is mental health? Retrieved 2025, from https://wfmh.global/
