What's That About?

We spend over one-third of our lives asleep, but this time is not being wasted. A lack of sleep can lead to health problems and an inability to function properly. Unfortunately for some, around half of the population snore, resulting in less sleep for the other half. You could also be sharing your bed with up to 10 million mites inhabiting your mattress. Around a third of people suffer from insomnia, but we see how amino acids in warm milk can stimulate the "sleep hormone".

It can be hard for some people to get up out of bed, but the process of the morning washing ritual can be a real eye-opener. The shower, soap, razors, even the toilet are all the result of a lengthy evolutionary process in personal hygiene. Find out why humankind added chalk to toothpaste, aluminum to antiperspirant, and how baby nappies were made even more absorbent because of an astronaut's space suit.