We envy those who have the ability to dive into a deep sleep without ruminating their current difficulties at 4am! Author sest interested to eight questions that often take an enlightened leader. Take for example "Why nobody takes account of my great ideas? ". This question helps clarify the distinction between the influence, persuasion and manipulation. This is much the influence or ability to earn both the head and the heart of our interlocutor that he we have to develop: our interlocutor has understood our idea and adheres to it! Behaviors that are more or less spontaneous help us achieve this goal: to respect the boundaries, communicate clearly, adapting communication style to his interlocutor, or to show dempathie are all levers to implement. You will also appreciate the question "Why do they resist my team to change? ". The author analyzes the brakes and resistance strategies that everyone unconsciously deploys facing a sustained change. So, sometimes we have difficulty understanding the preference for the status quo, so present in our teams: this may be a sign of a depletion related to the development of new habits. Changes that seem minor deplete our brain, which in séconomise running through automation, also unsuitable as they are. The examples speak to all those who manage teams and complex situations. The put into perspective and practical tips will help you sleep more calmly!