Introduce the concept of the biology of emotions. Explain that emotions are driven by physiological processes involving the brain and body. Mention that this deck connects to the broader lesson plan 'Scientific Emotions Lesson Plan'.

Explain the role of the nervous system in regulating emotions. Use a diagram to show how signals from sensory inputs trigger responses in the brain.

Discuss the role of hormones and the endocrine system in modulating our emotions. Highlight examples like cortisol and adrenaline during stressful situations.

Summarize the connection between biology and our emotional experiences. End with questions to engage students in thinking about how science applies to their own emotions.