We can answer this question by looking at the differences between the first, second and third layers of our skin.
NASA/Pat Rawlings, SAIC
An expert explains the challenges of a mission to Mars for younger readers.
Looking out the window instead might stop you feeling sick, but that doesn’t work for everyone.
When you read in the back seat of the car, your eyes tell your brain you're still. But your ears can sense you're moving. Your eyes and ears are having an argument that your brain is trying to settle.
It’s one of your body’s most basic vital signs.
Trying a new exercise routine? Strapping on a new wearable monitor? An expert in human physiology explains the ins and outs of your heart rate and why it's a valuable number to understand.
At a molecular level, stresses and strains can make your body clock break into a sprint.
Emerging evidence suggests that prolonged stress exposure can accelerate the ticking rate of an internal cellular clock. By doing so, stress can contribute to faster ageing and body deterioration.
Turkeys do a lot of standing and milling around, not a lot of flying.
Sit down to Thanksgiving dinner ready to amaze your companions with physiological facts about why different cuts of the turkey have different characteristics.
Prince Andrew during the recent BBC interview.
In his recent interview, Prince Andrew claimed that he had stopped sweating. Here's what the research says about how and why our bodies do it.
The debate about why women have a clitoris has long been shaped by cultural, religious and moral influences.
New research suggests the clitoris is equally as important for reproduction as it is for sexual pleasure. But the evidence behind that claim is up for debate.
Recent marathons in Qatar were run during the night to avoid the hottest temperatures.
The marathons in next year's Tokyo Olympics have been moved to Sapporo, because of concerns around Tokyo's extreme heat. The move, though controversial, will reduce risks to the athletes' health.
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Our body is able to regulate its temperature very effectively, but heat waves can damage certain organs if we are not careful…
Researchers imagine tapping into your body’s reactions to extreme cold to reap psychological benefits.
Can the brain’s conscious mechanisms exert a significant influence on the body’s autonomic functions? New research suggests yes – with possible implications for mental health.
Shrimp cocktail: Tasty to some, potentially deadly for others.
Alongside with milk, eggs, peanuts, tree nuts, wheat, soybeans and fish, shellfish are one of the eight allergens that account for 90% of food-related allergic reactions. What if a vaccine could exist?
It’s all about holding on to the heat you have.
Winter comes with colder temperatures. You and your body can work together to stay comfortable.
Eighty years ago, Seabiscuit trounced Triple Crown winner War Admiral.
The US went crazy for Seabiscuit when he won his famous 1938 match race against War Admiral. Now researchers are investigating the thoroughbred's DNA to see what made him such an unlikely success.
Dinosaurs had some bad luck, but sooner or later extinction comes for all of us.
Death is inevitable for individuals and also for species. With help from the fossil record, paleontologists are piecing together what might make one creature more vulnerable than another.
Australia’s Michael Shelley will run in the Gold Coast Commonwealth Games marathon.
There are many factors that set elite runners apart from other runners, including training volume, physiology, tendon function and running technique.
‘Under’, Martina Amati.
© Martina Amati
Diving without oxygen tanks requires you to enact some very weird and very strange and not all that well understood physiological feats just to stay alive.
Temperatures in Pyeongchang fall below -10℃ at night.
Here's how athletes at the Winter Olympics are able to perform in extreme cold.
Little does this woman know what happens to her brain when she licks the ice cream.
It's a long, hot summer's day and you're looking forward to an ice cream. But within seconds of your first bite, you feel a headache coming on: a brain freeze. What's going on?
Many can identify with the phenomenon of feeling a thrill – followed by a chill – when listening to a particularly moving piece of music.
'Pink' via www.shutterstock.com
When seeing or hearing something poignant, many get the chills. But about one-third of the population doesn't feel this sensation.