Every one of us possesses an armory of instincts which keep us alive. We are often barely aware of them, but they act every day to protect us from danger and keep us fit and healthy.
In the first programme of the Human Instinct series we explore how this most basic of instincts means we're all born to survive.
The instinct to have sex is one of the most potent we possess. It's vital if we are to produce the next generation. In the second programme we find out what it is about the way we look, the way we smell and what we possess, that can attract the ideal mate.
We're always competing, even when we least expect it. The will to win is an instinct that's kept our species alive. In the third programme we discover why coming out on top feels so great and why losing feels so bad.
A 200,000 year old jawbone tells the story of an elderly woman who was kept alive thanks to the kindness of her companions.
From this first known example of human compassion to modern day heroes, the final programme in the Human Instinct series explores the most complex of instincts. The instinct to put others first.