Brought to you by Penguin.

The new taboo-busting book from the internet’s favourite doctor and Sunday Times bestselling author of This Book May Save Your Life.

Have you ever wondered:
· How do I get rid of bad breath?
· Are my boobs normal?
· Should I be farting this much?

In This is Vital Information, Dr Karan dives into the weird and wonderful world of medical taboos and empowers readers with the information they need to live longer and happier lives. You will:

· Learn to love your haemorrhoids, the unsung heroes keeping your backdoor sealed, and your dignity intact.

· Turn your gut into a natural Ozempic factory with the power of fibre.

· Protect your hairline by putting down the snake oils, cutting stress, and scrubbing your scalp.

· Reboot your understanding of ADHD because half of what you’ve heard online is wrong.

The fact is, everyone has weird thoughts from time to time, a rash is often just a rash, and a mole is normally nothing to worry about. But occasionally these bodily malfunctions can indicate something more alarming, so we shouldn’t delay talking about them with a medical professional just so we don’t have to have an awkward conversation.

Dr Karan explains why we all need to start talking openly with our friends, family and – most importantly – our doctors.

Now, open up and say ‘ah’…

'When you want to sort medical fact from medical fiction, Dr Karan is your man. This is the only book that will have you laughing and learning in equal measure.' Dr Julie Smith, bestselling author of Why Has Nobody Told Me This Before

'Wonderfully comforting' Chris van Tulleken, bestselling author of Ultra-Processed People

'The go-to expert for a generation' Telegraph

© Dr Karan Rajan 2026 (P) Penguin Audio 2026