Why do I sometimes feel insecure about who I am?
Identity: a brain under construction
Feeling insecure about who you are is completely normal, especially during adolescence. Identity is not a finished product, but a process in constant evolution. Our perception of ourselves is built through memory, experience, and interaction with others. But what happens in the brain when we feel insecure?
The insula, memory, and experience: the origin of our self-perception
Identity is strongly related to the insula, a brain structure that connects emotions, bodily perceptions, and autobiographical memory. This region helps us interpret who we are based on our past experiences and how we feel in the present.
When we feel insecure about our identity, it is because our brain is processing memories, emotions, and expectations in an unclear or even distorted way. Our memory, which should help us build a coherent narrative about who we are, can be influenced by negative experiences or by fear of external judgment.
The wandering mind and ruminating thoughts
When our mind is not focused on the present, it switches to automatic mode, activating the default mode network. This brain system, responsible for introspection and self-reflection, can be a powerful tool for creativity and planning, but it can also lead us into rumination: repetitive, negative thoughts that make us doubt ourselves.
In fact, neuroscience studies have shown that when a person has ruminating thoughts, the same brain areas that process language and listening (such as Wernicke’s area) become active. It is as if the brain were listening to an inner voice that repeats toxic thoughts like: “I’m not enough”, “I’m not going to make it”, “Nobody understands me”.
How can you stop the voice of insecurity?
The first step to reducing these thoughts is becoming aware of them. When you notice that your mind is stuck in a repetitive thought, you can interrupt it with concrete strategies:
- Conscious breathing: By focusing on your breathing, you bring your mind back to the present and reduce the activity of the default mode network.
- Identify the thought: Ask yourself: Where does this idea come from? Is it really true? Many times, these thoughts are not facts, but mistaken interpretations.
- Replace it with something useful: Instead of telling yourself “I’m not enough,” try changing it to “I am learning and improving every day.”
- Physical movement: Walking, stretching, or exercising releases neurotransmitters such as dopamine and serotonin, which improve mood and break the chain of negative thoughts.
- Write it down: Putting these thoughts on paper can help you see them more clearly and question their validity.
Conclusion: Human beings are always under construction.
Feeling insecure about who you are is part of the natural process of development. Identity is not something fixed, but a story we keep building through our experiences, emotions, and learning. By becoming aware of how our brain generates ruminating thoughts and learning to redirect our mind toward the present, we can develop a healthier relationship with ourselves.
Something to reflect on:
- When was the last time you caught your mind wandering into negative thoughts?
- What strategies could you use to replace a toxic thought with a more useful one?
- How can you incorporate more moments of mindfulness into your daily life?
Key structures and mechanisms in identity construction
- Insula: Related to self-perception and the integration of emotions.
- Hippocampus: Responsible for autobiographical memory and learning.
- Default mode network: System that processes internal thoughts and self-reflection.
- Prefrontal cortex: Regulates decision-making and attention control.
- Key neurotransmitters: Dopamine (motivation and learning), serotonin (emotional well-being), and cortisol (stress response).
Sources:
- Northoff, G., & Bermpohl, F. (2004). The Neural Basis of Self and Identity: Theoretical and Empirical Considerations. Psychological Review, 111(1), 92-116.
- Raichle, M. E. (2015). The Brain’s Default Mode Network. Annual Review of Neuroscience, 38, 433-447.
- Damasio, A. (2010). Self Comes to Mind: Constructing the Conscious Brain. Pantheon Books.
- Brewer, J. A., et al. (2011). Meditation Experience Is Associated With Differences in Default Mode Network Activity and Connectivity. PNAS, 108(50), 20254-20259.