: The old cliché says it's good to stop and smell the roses. If you believe a series of viral videos, you may appreciate them more if you grew up in the US.

Sometimes our bodies react to the world around us before we realise, shaping our emotions.

Colours change to a surprising degree when submerged underwater, so what you and your children wear in the water can make a difference in an emergency.

Our sense of smell is one of our richest and wide-ranging windows into the world around us, but a threat in the air we breathe may be eroding our olfactory powers.

Our world is awash with a rainbow of colours, but certain shades can have a surprising impact on our ability to concentrate, our mood and even our taste.

There is a wealth of psychological and biological information stored in our scent, but for some reason we choose to ignore it.

The smells of ordinary life, from traditional pubs to old books, are part of our culture and heritage – and many of them are in danger of being lost.

With mouth clicks, experts can detect whether a disc one metre away has been moved. Here's how we could all benefit from harnessing our hidden senses.