The success of the people we surround ourselves with directly influences our performance and sense of accomplishment. It's worth paying attention to how we balance this, both with those more successful but also those less.

'Control' isn't always a bad thing in a relationship. In fact it's necessary. We always have a level of control over our partners, we must just use it with their approval, and to meet their needs as well as ours.

Group dynamics are often thought to be a complicated thing to explore. But a 50-year-old model explains much of it with only three things: a need for Belonging, for Affection, and for Control.