Live Better
 
 

The science of falling in love

From butterflies in the stomach to overwhelming happiness, here’s what happens to your brain when you find that special someone.

Person holding hands together in a love heart shape against the sun

When Grace Jones sang “love is the drug” in her 80’s hit, she wasn’t actually all that far from the truth. It turns out that the feeling we know as love is actually an irresistible cocktail of hormones and chemicals that result in feelings characterized by exhilaration, intrusive thinking or obsessive thoughts and desire for emotional union. Intense!

So what actually happens to our brains when we fall in love? Whilst falling in love is not an exact science, and we still don’t know enough to draw firm conclusions about every piece of the puzzle, many of the feelings we experience when falling in love can be traced back to your brain.

MORE: How learning your “love language” can enrich your relationship

Stage one – lust

Driven by sex hormones testosterone and oestrogen, lust is indicative of our need to reproduce. Lust is controlled by the endocrine system: whilst parts of the hypothalamus prime the body for sex, steroid hormones increase sexual desire.

Stage two – attraction

This is what is often described as the ‘honeymoon period’. Your mind is consumed by thoughts of your partner. You might lose appetite and even need less sleep. But what makes us feel this way?

At this stage it’s a trio of neuro – transmitters called ‘monoamines’ that take over:

  • Dopamine: when you meet someone new your dopamine levels surge giving you that ‘butterflies in the stomach’ thrill when you see your new love. This also creates an intense craving to be around them. Dopamine is also activated by drugs such as cocaine and nicotine so no wonder some people say they feel addicted to love!
  • Norepinephrine: more commonly known as ‘adrenalin’, this amps up to set your heart racing and your palms sweating. It’s also associated with euphoria and increases emotional dependency.
  • Serotonin: At this stage your serotonin levels actually drop which cranks up your desire. It’s thought that the increase in testosterone as you fall in love can suppress your serotonin.

MORE: How alcohol affects your brain

Stage three – attachment

It’s easy to see how the attraction stage isn’t sustainable. After time the attachment stage kicks in to form a long lasting bond.

This stage is ruled by hormones released by your nervous system:

  • Oxytocin is released by the hypothalamus gland during child birth and cements the strong bond between mother and child. It’s also released by both sexes during orgasm. Promoting bonding, this hormone deepens your connection each time you are intimate.
  • A hormone called corticotropin-releasing factor (CRH) promotes partner attachment but may also risk causing depression and anxiety. So that feeling you get when you are separated from your partner may well come down to this.
  • A molecule called vasopressin is released. Linked to territorial behaviour this molecule can, in healthy relationships, increasing feelings of loyalty and causing people to feel protective of their partners whilst promoting fidelity.
  • In addition, serotonin levels return to normal creating a trusting and less needy attachment.

Want to know more about how alcohol and drugs really affect you? Read about the main health issues impacting young Aussies here.

Latest Articles

Healthy Living

Are you a cyberchondriac?

Dr Google could be making you anxious.

Read more
Healthy Living

Can you reduce the effects of PMS?

Up to 30% of women experience severe premenstrual syndrome.

Read more
Healthy Living

How to have a conversation about suicide

Reaching out to someone you care about could save their life.

Read more
Wellbeing

Can social media ruin your social life?

What’s social media doing to your mental state?

Read more
Health Insights

When should you worry about your teen?

Teenage angst or depression? How to tell the difference.

Read more
Healthy Living

What to do if you get sick in Australia

A simple guide to help you get the right medical attention.

Read more
Healthy Living

Are you cutting your toenails correctly?

Straight or curved? Podiatrist Joseph Frenkel explains.

Read more
youtubeui-checkbox-tickui-checkbox-emptyui-checkbox-crosstwitterui-checkbox-tickWellbeing and mindfulness 1Physical Health 1Positive psychology 101 1Wellbeing and mindfulness 4All about gut health 1Understanding Genetics 4Planning for Pregnancy 2During Pregnancy 3The mind-gut connection 4The mind-gut connection 1New Parents 3Page 1Group 10During Pregnancy 2Page 1Physical Health 2Planning for Pregnancy 1Positive psychology 101 1Positive psychology 101 4Planning for Pregnancy 4Understanding Genetics 1Physical Health 4Planning for Pregnancy 3Nutrition 4New Parents 1New Parents 3 CopyMovement for your mind 4Wellbeing and mindfulness 2Nutrition 2sob-icon__mind-bodysob-icon__man-with-laptopAll about gut health 2Positive psychology 101 3Positive psychology 101 2Physical Health 3Wellbeing and mindfulness 3All about gut health 3genetics-changing-what-your-givenUnderstanding Genetics 2During Pregnancy 1Movement for your mind 2Movement for your mind 1Movement for your mind 3During Pregnancy 4