Scientific reasons for feelings of happiness and sadness have been studied for centuries. Hormones like dopamine, serotonin, endorphins, oxytocin, and cortisol influence our moods. Dopamine motivates us towards goals and gives pleasure upon accomplishment. Serotonin promotes feelings of happiness and calmness. Endorphins act as natural painkillers and improve mood. Oxytocin, the "love hormone", induces feelings of love, trust and well-being when bonding with others. Cortisol is a stress hormone that can cause anxiety when levels are too high. Pursuing goals, spending time with loved ones, being physically active and mindful can help boost happiness hormones and reduce stress. True happiness may be