If we could photosynthesise, Mark asks, how much green skin would we need to make enough energy to live our normal...
Can exposure to light change our body clock?
If our evolutionary purpose is simply to have children, then what's the point of being old?
Why do some parts of the body speed up as we get older, whilst others deteriorate?
I've heard that muscles can waste in space because of decreased gravity. Does that mean astronauts return to Earth...
Looking at some things, like an overflowing bin, or someone being sick, can be enough to put you right off your...
Is one or two steps at a time more energy efficient?
what changes in your body from start to finish?
What's the minimum number of photons our eye can detect?
Are hairy men better at producing babies?
Will someone in the Arctic circle be less sensitive than someone in Australia?
What's the cause of the splitting headache we sometimes get when eating something cold?
How quickly does your cup of tea get through your body?
...and if so, why?
By eating omega-3 fatty acids, could I cut the risk of a heart attack?
My dad is dark-skinned, my mother light so could I change the colour of my skin?
How long could someone survive on a bypass machine?
Say goodbye to stitches...
We all know the old wives tale but could it help lessen a bruise?
When you give a pint of blood, what's the caloric cost to recreate that pint?