What happens inside knuckles when they're cracked

Here's what happens when you crack your knuckles

The old wives tale says that cracking your joints leads to arthritis and poor grip - but is it true?

Babies made to crawl off 'cliffs' to test their fear of heights

Are we born afraid of heights or is it something we learn after one too many faceplants as a baby?

The fatter you are, the harder it is to lose weight

Our bodies are being scumbags again - new research has found a certain protein that makes losing weight harder for fatter people.

The pizza topping that can help stave off cardiovascular disease

Want to reduce your chance of cardiovascular disease? Eat more seaweed, experts say.

Children's cup towers destroyed for science

WATCH: Kid's cup towers cruelly knocked over in the name of science

Researchers construct an experiment to test how children handle apologies from adults.

Parasitic worms can help boost women's fertility

Looking to fall pregnant? Researchers have found a solution that may turn your stomach

Why the latest fad diet isn't working for you

Your friend at the gym lost 10kg eating like a palaeolithic cavemen, yet you haven;t lost a thing - what gives?! Turns out it's all about our blood sugar levels, says new research

The one-minute test that can determine how well your toddler will perform at school

Researchers found a link between this test and the school performance of toddlers eight years later

Your baby can tell who’s boss

Babies know who's boss before they turn one

Known as 'transitive inference', infants as young as 10 months old can recognise social hierarchies