Falling in love: This is what happens with your body

According to the vernacular “opposites attract”. However, a common phrase is also “Birds of a feather all flock together”. What is really true? No one can say that with certainty. However, there are scientific explanations for why we feel the way we feel when we are in an emotional state of excitement. With our graphics, you can see at a glance how exactly your body changes and what biochemical processes are involved in the typical symptoms.

While the substances adrenaline, dopamine, oxytocin and vasopressin are significantly increased, the serotonin content in the blood is lower than usual. This combination is responsible for the fact that in biochemical terms the emotional feeling is similar to a drug intoxication! The whole body is full of hormones and messengers.


The stimulating stress hormone adrenaline causes many physical changes. The oxygen consumption of the body is increased by adrenaline. This is noticeable by a fast-paced heart, moist hands, and dilated pupils. The classic butterflies in the belly we feel because the stomach is a very sensitive part of the body, which is why hormonal changes feel like tingling in the belly.

The love, or the happiness hormone dopamine, not only provides a noticeable euphoria and energy boost but unfortunately often also for appetite and insomnia. No wonder you cannot think of anything but his swarm all day long. Time and energy you have in any case. However, if the dopamine level falls again, we feel like we are on a withdrawal.

Oxytocin, a cuddling and loyalty hormone, promotes social interactions. In reality, this means that those in love are particularly keen on physical closeness. Also, vasopressin provides similar changes, since it ensures an increased pressure of the vessels. This, on one hand, makes the face quickly red, and on the other hand, an increased sexual desire is felt.