Did someone say love is a drug? Quite rightly so! According to US researchers a person in love enjoys euphoria like feeling as the brain opens gates for happy chemicals. The effect is even similar as cocaine.

Stephanie Ortigue of Syracuse University and team conducted a meta-analysis and found the process of falling in love can actually take one-fifth of a second and brain responds to it quickly by releasing a plethora of happy chemicals such as dopamine, oxytocin, adrenaline and vasopressin.

While brain is where all the action is, heart too plays an important role in love. Ortigue said the complex concept of love is formed by both bottom-up and top-down processes and involves the brain and heart. The analysis also hints that different parts of the brain are involved while one falls in love.

For example, the unconditional love between a mother and a child include the middle of the brain, but when it comes to lovers, love is kindled by the reward part of the brain. No wonder then when things go wrong in love, a person goes through tremendous emotional stress often leading to depression.