What are hormones and how do they affect emotions?

Hormones are chemical messengers produced by glands in the endocrine system that regulate various bodily functions, including growth, metabolism, and mood. They influence emotions by affecting brain chemistry and signaling pathways; for example, cortisol is linked to stress, while serotonin and dopamine are associated with feelings of happiness and well-being. Fluctuations in hormone levels, such as during menstrual cycles, puberty, or stress, can lead to changes in emotional states and behaviors. Overall, hormones play a crucial role in how we experience and express our emotions.