When two people feel an instant connection, we often call it “ chemistry .” But what really causes this invisible spark? Is it merely a romantic notion , or does science have something to say? Modern neuroscience reveals that our attraction to others is not just emotional—it's deeply biological, involving brain circuits, neurochemicals, and evolutionary hardwiring. Let’s explore the science of attraction and what’s really going on in our brains when we fall for someone. 🧬 What Is "Chemistry"? The Brain’s Role in Instant Connection 🔥 The term "chemistry" is often used to describe the magnetic pull between two people, but in the brain, it’s literally about neurochemical reactions . When we feel attracted to someone, our brain releases a cocktail of powerful neurotransmitters —notably dopamine , oxytocin , serotonin , and norepinephrine . Dopamine , often called the "reward" neurotransmitter, spikes when you’re with someone you're drawn to...