Remember that gut-clenching fear of speaking up in class? Organizational psychologist Rafael Chiuzi reveals how that same feeling shows up in the workplace, limiting productivity and the free exchange of ideas. Backed by decades of research and hands-on consulting, he unpacks the science of psychological safety — and shares three actionable steps to build teams where curiosity thrives and courage replaces fear.

The most powerful predictor of team success

Many people carry the childhood fear of speaking up into adulthood, stifling ideas in workplaces and even leading to tragic consequences, like the Boeing 737 Max crashes. Psychological safety—the sense that no one will be punished or humiliated for voicing concerns or mistakes—proves to be the strongest driver of team performance and innovation. Creating this environment requires more than words; it takes consistent leadership action and a willingness to treat mistakes as learning opportunities. When people feel safe to take risks, creativity and honest dialogue flourish.