Adopted from the following great quote of David Rock in his book Your Brain At Work

Cortisol – Leads to stress

Dopamine – Addictive and stimulated by rewards

Oxytocin – Love hormone and leads to fulfillment

Serotonin – Leadership hormone

“May your cortisol levels stay low, your dopamine levels high, your oxytocin run thick and rich, your serotonin build to a lovely plateau, and your ability to watch your brain at work keep you fascinated until your last breath. I wish you well on your journey.”