Role of Harmones in Teaching and Learning

by Ahmad Yar

Every classroom consists of students with diverse personalities, emotions, and learning needs. Some students are energetic, curious, and eager to participate, while others appear anxious, distracted, withdrawn, or unmotivated. Traditionally, such differences were often attributed to intelligence, personality, or home environment. Contemporary neuroscience, however, demonstrates that learning is also profoundly influenced by biological processes, particularly the interaction between the brain and the endocrine system.

Hormones and neurotransmitters continuously communicate with the brain, influencing how students think, feel, remember, concentrate, and interact with others. Learning is therefore not simply an intellectual activity; it is also an emotional, social, and biological process. A student experiencing chronic stress may struggle to remember information despite having high intellectual ability, whereas another student who feels emotionally safe and supported may demonstrate remarkable curiosity, creativity, and persistence.

Modern educational neuroscience emphasizes that emotions and cognition cannot be separated. According to Immordino-Yang (2016), emotions are fundamental to attention, decision-making, memory formation, and meaningful learning. Similarly, Tokuhama-Espinosa (2019) argues that effective teaching requires an understanding of how biological, emotional, and environmental factors interact during learning.

Teachers are not expected to become neuroscientists or physicians. Nevertheless, understanding the biological foundations of learning enables them to interpret student behavior more accurately, avoid unnecessary labeling, and create classroom environments that promote both emotional well-being and academic achievement.

 

What Are Hormones?

Hormones are chemical messengers produced by specialized endocrine glands such as the hypothalamus, pituitary gland, thyroid gland, adrenal glands, pancreas, ovaries, and testes. After being released into the bloodstream, hormones travel throughout the body and influence the activity of various organs, including the brain.

Unlike nerve impulses, which transmit information within milliseconds, hormones generally produce slower but longer-lasting effects. They regulate numerous physiological and psychological functions, including growth, metabolism, sleep, stress responses, mood, emotional regulation, motivation, social bonding, and memory.

It is important to distinguish between hormones and neurotransmitters. Neurotransmitters, such as dopamine and serotonin, primarily transmit signals between neurons within the brain. However, these chemical messengers also interact closely with hormonal systems. In educational literature, they are often discussed together because both influence learning, behavior, and emotional functioning. Rather than acting independently, hormones and neurotransmitters function as part of an integrated neuroendocrine system.

Learning occurs most effectively when this system is in balance. Excessive stress, sleep deprivation, poor nutrition, prolonged anxiety, and social isolation can disrupt hormonal regulation and reduce students' capacity to pay attention, solve problems, regulate emotions, and retain new information.

Research in neuroscience indicates that the brain remains highly responsive to environmental experiences throughout childhood and adolescence. Positive classroom experiences strengthen healthy neural connections, whereas persistent fear, humiliation, and chronic stress can interfere with brain networks involved in learning, memory, and emotional regulation (McEwen & Akil, 2020).

Thus, learning should be understood not only as a psychological process but also as a biological process influenced by continuous interactions among the brain, hormones, emotions, and the learning environment.

 

Why Teachers Need to Understand Hormones

Teachers observe student behavior every day, yet behavior is often interpreted only from a disciplinary or academic perspective. A student who refuses to answer questions may be viewed as lazy or disrespectful, while another who cannot concentrate may be considered inattentive. Neuroscience suggests that these behaviors frequently reflect underlying emotional and biological processes rather than a lack of ability or motivation.

For example:

• A student experiencing chronic stress may have elevated cortisol levels that reduce concentration and working memory.
• A student suffering from sleep deprivation may struggle to sustain attention because disrupted melatonin rhythms impair cognitive functioning.
• A learner who rarely experiences success may show reduced motivation because the brain's reward system is insufficiently activated.
• Students who feel emotionally accepted and respected often demonstrate greater confidence, participation, and persistence.

Understanding these biological influences helps teachers respond with empathy instead of punishment. Rather than asking, "Why is this student misbehaving?" teachers begin to ask, "What might this student's brain and emotional system be experiencing?"

This shift from judgment to understanding has important educational implications. Teachers cannot diagnose hormonal disorders or mental health conditions. However, they can recognize behaviors that may signal emotional distress, provide supportive learning environments, collaborate with families, and refer students to appropriate professionals when necessary.

Knowledge of neuroscience also reminds teachers that their own behavior significantly influences students' biological responses. Every interaction between teacher and learner can either activate stress systems or strengthen feelings of safety, belonging, and motivation.

---

Cortisol: The Stress Hormone

Cortisol is produced by the adrenal glands as part of the body's natural response to stress. Under normal circumstances, cortisol is beneficial because it prepares the body to respond to challenges, increases alertness, and mobilizes energy during demanding situations.

Short-term increases in cortisol before an examination or classroom presentation may temporarily improve attention and performance. However, when students experience repeated or prolonged stress, cortisol levels remain elevated for extended periods. Chronic activation of the stress response negatively affects several brain regions involved in learning, particularly the hippocampus, prefrontal cortex, and amygdala.

Research demonstrates that prolonged exposure to elevated cortisol can lead to:

• reduced attention and concentration,
• impaired working memory,
• difficulty retaining new information,
• emotional irritability,
• increased anxiety,
• reduced cognitive flexibility,
• poor decision-making,
• examination fear,
• Avoidance of challenging tasks.

Lupien et al. (2009) and McEwen and Akil (2020) demonstrated that chronic stress alters brain functioning and negatively affects memory, emotional regulation, and learning capacity.

How Teacher Behaviors Increase Cortisol

Teachers play an important role in either reducing or increasing students' stress responses. Unfortunately, some classroom practices unintentionally activate chronic stress.

Examples include:

• shouting at students,
• public humiliation for mistakes,
• sarcastic comments,
• labeling students as "weak," "lazy," or "slow,"
• threatening failure or punishment,
• comparing students with higher-achieving classmates,
• excessive emphasis on marks,
• unpredictable discipline,
• favoritism,
• ignoring emotional needs,
• Creating fear instead of curiosity.

Although these behaviors may produce immediate compliance, neuroscience indicates that fear-based teaching reduces deep learning. Students become preoccupied with avoiding mistakes rather than understanding concepts. Over time, chronic stress reduces motivation, creativity, classroom participation, and academic confidence.

Students repeatedly exposed to humiliation often become withdrawn, anxious, perfectionistic, or behaviorally disruptive. Some lose confidence entirely and begin believing they are incapable learners.

Teacher Behaviors that Reduce Stress

Effective teachers intentionally create psychologically safe learning environments by:

• speaking respectfully,
• responding calmly to mistakes,
• encouraging questions,
• treating errors as learning opportunities,
• maintaining consistent classroom expectations,
• providing constructive feedback,
• acknowledging effort as well as achievement,
• promoting cooperation instead of competition,
• building trusting relationships,
• Showing empathy toward students facing difficulties.

Such classrooms reduce unnecessary cortisol activation and allow the brain to devote more cognitive resources to learning, problem-solving, and creativity.

 

Dopamine: Reward, Motivation, and Learning

Dopamine is often described as the brain's reward neurotransmitter, but modern neuroscience shows that its role is much broader. Dopamine contributes to motivation, curiosity, goal-directed behavior, attention, reinforcement learning, and the anticipation of success. Rather than simply producing pleasure, dopamine helps the brain recognize meaningful experiences and motivates individuals to repeat behaviors associated with positive outcomes.

When students solve a challenging problem, receive encouraging feedback, master a new skill, or achieve a meaningful goal, dopamine pathways become activated. These experiences strengthen neural connections associated with learning and increase the likelihood that students will remain engaged in future learning activities.

Schultz (2016) demonstrated that dopamine neurons respond strongly to reward prediction and learning, helping individuals adapt their behavior based on experience. Contemporary neuroscience further shows that dopamine supports attention, persistence, and cognitive flexibility when learners perceive tasks as achievable and meaningful.

Classroom Practices that Support Healthy Dopamine Activity

Teachers can naturally enhance students' motivation by:

• setting clear and achievable learning goals,
• breaking difficult tasks into manageable steps,
• celebrating progress rather than perfection,
• providing timely and constructive feedback,
• encouraging curiosity through inquiry-based learning,
• offering appropriate choices in learning activities,
• recognizing effort and improvement,
• Designing engaging, meaningful lessons connected to real-life experiences.

These practices encourage students to associate learning with achievement, competence, and personal growth rather than fear or failure.

Teacher Behaviors that Reduce Motivation

Some teaching practices unintentionally weaken students' intrinsic motivation. These include:

• constant criticism,
• focusing exclusively on mistakes,
• unrealistic expectations,
• excessive competition,
• repetitive rote learning without understanding,
• ignoring student interests,
• rewarding only top-performing students,
• discouraging questions,
• dismissing creativity,
• Making students feel incapable of success.

When students repeatedly experience failure without encouragement or support, they may gradually disengage from learning. Instead of becoming curious learners, they become passive participants who complete tasks merely to avoid punishment.

An effective teacher understands that motivation is cultivated through supportive relationships, meaningful learning experiences, and opportunities for success rather than through fear, shame, or excessive pressure.

Key Learning Points

• Learning is a biological, emotional, cognitive, and social process.
• Hormones and neurotransmitters continuously influence attention, memory, motivation, emotional regulation, and behavior.
• Chronic stress elevates cortisol, reducing concentration, working memory, and academic performance.
• Dopamine strengthens motivation, curiosity, persistence, and reinforcement learning through meaningful success experiences.
• Serotonin contributes to emotional stability, confidence, and positive classroom participation.
• Oxytocin supports trust, belonging, empathy, and healthy teacher–student relationships.
• Melatonin regulates healthy sleep, which is essential for memory consolidation and executive functioning.
• Negative teacher behaviors such as humiliation, sarcasm, threats, favoritism, excessive punishment, and public criticism increase stress and reduce learning.
• Positive teacher behaviors including empathy, encouragement, fairness, constructive feedback, emotional safety, and autonomy support enhance student engagement and academic achievement.
• Teachers who understand the neuroscience of learning can create classrooms that promote both psychological well-being and lifelong learning.