Does a plucked hair grow back?  Why does nicotine suppress your appetite? And how high is the sky?

Dr Karl answers these questions and more on triple j Mornings with Lucy Smith

Doctors, here's a sneak peek of a brand new podcast co-hosted by Dr Karl.

Why do some people get so hot when they're asleep?  Can you flush microplastics out of your body? Do brain freezes become more common as we age?

Dr Karl answers these questions and more on triple j Mornings with Lucy Smith. 

Where is the centre of the universe? What would happen if the speed of light increased? And what is Dr Karl's favourite maternity fact?

Dr Karl answers these questions and more on triple j Mornings with Lucy Smith. 

Would we die without dioxygen? Where did spiders come from? And can you learn to hack the cold?

Dr Karl and Zoe Kean (OAM!) answer these questions and more on triple j Mornings with Lucy Smith. 

Does Missy Higgins have geometrically impossible standards? How high do hot air balloons go? And how much is too much 'Sugar On My Tongue'?  

Dr Karl answers these questions and more in this special episode of Science with Dr Karl with Lucy Smith. 

What's the fastest way to cool down a room? How helpful is a stiff drink on a sick day? And is weeing in the shower good for you? 

Join Lucy, Dr Karl and special guests for a look back on some of our favourite questions from this year all about life hacks!

Does Halsey understand DNA properly? How long should we cryogenically freeze ourselves for? And can we learn how to remember everything?

Join Lucy, Dr Karl and special guests for a look back on some of our favourite questions from this year all about the human body!

How much can a black hole consume? Would anything happen if we all jumped at once? And which planet would have the best gigs?

Join Lucy, Dr Karl and special guests for a look back on some of our favourite questions from this year all about space!

What muscles are required for a yawn? How does jewellery affect our skin? And what's the connection between atoms and physical pain?

Dr Karl answers these questions and more on triple j Mornings with Lucy Smith.