Latest from Focus...
28/07/2014
25/07/2014
24/07/2014
24/07/2014
In this month’s Focus: how to control your dreams, the comet-chasing spacecraft, animal supersenses, and the search for new antibiotics
23/07/2014
22/07/2014
22/07/2014
"Why do people behave differently in a crowd?" and "How did dinosaurs mate?" BBC Click Radio presenter Gareth Mitchell answers life's big questions
Gallery
Apollo 11 in pictures
Poll

As Google Glass is banned in UK cinemas, do you think use of the smart headset should be restricted?

Should Google Glass use be restricted? Should Google Glass use be restricted?

As Google Glass is banned in UK cinemas, do you think use of the smart headset should be restricted?

Q&A

Your body is constantly making, altering, and destroying chemical compounds, but they’re so varied and complex that it’s impossible to detect and count them all. Water is the most common, but the...

The vagus nerve sends information about the fullness of the stomach to the hypothalamus in the brain. Hunger is also controlled by hormones, including insulin, leptin, ghrelin and cholecystokinin...

There is no way to tell from a fossil whether the animal was sleeping when it died or not. But it seems likely that the four-legged dinosaurs probably mostly slept standing up to allow them to...

A sneeze begins with a sudden inhalation. This is the ‘Aaah’ part of the sneeze. The ‘Choo!’ occurs on the exhale because most of the muscles in your body are reflexively...

Soft drinks typically have around 110g of sugar per litre. At this concentration, the density of the drink would be 1038kg/m3 at room temperature. Since the artificial sweetener aspartame used in...

Probiotic yoghurts and drinks contain live bacterial cultures, mostly strains of lactic acid bacteria. These bacteria are intended to reinforce the populations of similar beneficial bacteria...

A 2007 study at the US National Institute of Environmental Health Sciences found some evidence that both tea tree and lavender oils are endocrine disruptors. The effect was investigated after...

Hangovers are caused by three main processes. Alcohol dehydrates you by causing your kidneys to remove more water from your bloodstream. This shrinks your brain slightly, pulling on the...