It's winter time and who hasn't heard about winter depression, when it's dark and cold outside? Or is it just me? The next minute I am laughing out loud having a great time with my friends. How does this work that our emotional state can switch from one extreme to the other in such a short time frame? And what makes these extremes happen? With this episode I'll give you a simple tool how you can create your own emotional (heart) rate monitor and figure out what or who makes you feel like on a rollercoaster at some points in time.