Every week, hundreds of millions of people around the world surrender their emotions, leave them in the hands of strangers. Mike Williams asks why do sports fans do it? Show more

Sneaker, trainer, call them what you will. How did this footwear, originally intended for sport, become acceptable everywhere from the boardroom to the basketball court? Show more

Mike Williams explores what lies behind our tendency for nostalgia. Why does the past so often seem such a golden age? Did you know that reminiscing keeps you warm? Show more

Mike Williams investigates the ubiquitous and universally popular toy - the doll. Show more

Some of the most popular songs ever written are also the saddest. Helena Merriman asks why so many people appear to love a sad song. Show more

T-shirts can be promotional, provocative, stylish and scruffy. Why have they become so popular? Mike Williams investigates. Show more

Mike Williams asks why millions of people commute each day and the effect this travelling routine might have on them. Commuters are more stressed and less fit than non-commuters. Show more

Graffiti has a long history and can be seen in most parts of the world. What drives people to pick up a can and spray a blank wall with bright paint? Show more

Mike Williams asks why so many people compile dairies and what it says about them, the people in their social circle and the society in which they live. Show more

Helena Merriman asks why so many of us are drawn to gardening. Along the way, she discovers some secrets in the soil. Show more