Sight, hearing and other senses become sharper More oxygen is sent to the brain to increase alertness Breathing quickens and the airways in our lungs widen, so they can take in as much oxygen as possible Heart beats faster, pushing blood to the muscles, heart and vital organs The hypothalamus activates the sympathetic nervous system to release adrenaline to the bloodstream, triggering the ‘fight-or-flight’ response. The amygdala sends a distress signal to the hypothalamus – the part of the brain that controls the fight-or-flight response. This information is immediately sent to the amygdala – the part of the brain that is responsible for emotional processing. It controls thinking, learning, language and inhibiting. It grows rapidly in the first 3 years of a child’s life and continues to develop significantly into adulthood. This is the final part of the brain to develop. This is the second part of the brain to develop and is responsible for attachment and emotional development. Before a baby is even born, their brain is already adapting to the anticipated conditions in which they'll need to survive. The brain stem is the instinctual part of the brain which controls sensory motor input and survival, and is responsible for basic functioning such as breathing, blinking, digestion, fear response, and producing strong reactive states, such as anger and fear. This is the first part of the brain to grow which is already significantly developed by the end of the second trimester. Primitive brain – also known as the ‘brain stem’.Read more about the different child brain development stages below: The brain develops in a ‘bottom up’ sequence, from the lower parts of the brain that control the functions we do subconsciously, such as breathing, heartbeat, blood pressure and digestion, through to the more sophisticated functions that develop later in childhood, such as thinking, learning and language.
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