Four main brain chemicals, dopamine, serotonin, oxytocin and endorphins, all play a role in how you experience happiness. These hormones are chemicals produced by different glands across your body. They travel through the bloodstream, acting as messengers and playing a part in many bodily processes and also help you regulate your mood. Serotonin stabilises our mood, feelings of well-being, and happiness. Additionally, it helps decrease our worries and concerns and is associated with learning, m