Tired? Work stress? Performance pressure, or are you just not comfortable in your own skin?
It all starts with a battle between your ears. We all know it. That feeling that you just don’t feel good about yourself. That you’re inexplicably tired. One day you’re at work and go home feeling energized. The next day you feel like you’re completely drained. Why is that? Everything revolves around what takes your energy and what gives you energy.

It was an honor to follow the training for trainer coach with the founder of MindBoxing® and the Three Batteries®, Drs. Jan Sleijfer. He is considered an expert on performing under pressure and mental health, especially because of his combined vision from a Western and Eastern perspective. After the Academy of Physical Education he graduated cum laude as a social psychologist and specialized in sports psychology, martial arts and Traditional Chinese Medicine. Over the past 35 years, he gathered knowledge from masters from around the world and trained thousands of people, including elite athletes, prison officials, police officers, teachers, students, managers and many others. His critical eye has resulted in a practical and readable book, for anyone interested in personal development, health care, lifestyle, leadership and sustainable performance. Boost your batteries!

The battle between your ears: Mindboxing

Get the best out of yourself with the Three Batteries® method.
Mindboxing® is the battle between your ears. No symptom relief, but 100 days of work with the proven Three Batteries® method: Body Power, Feeling Power and Thinking Power. These batteries symbolize physical, social- emotional and mental resources to keep you balanced.

THREE BATTERIES® Method

What costs you energy? What gives you energy? We help you answer these two questions and ensure that you perform healthily and optimally. We have been doing this for over 10 years with our successful total approach: the Three Batteries® method. In top sports and within organizations. No tricks or small talk, but 100 days of practical work with your ‘consumers’ and ‘chargers’.

Proven effective approach: in Sports and in the workplace

Throughout the Netherlands numerous performance and sports psychologists work according to the Three Batteries® method. And for good reason! Research within elite sports and high-risk professions shows that the holistic intervention, makes people physically and mentally stronger. Simple and effective. Whereby the human being is seen as total. The three batteries of Thinking Power, Feeling Power and Body Power symbolize your mental, social emotional and physical resources of energy. Together they form the trinity of health and performance.