The Checkup

G Jayani gives us the lowdown on flu vaccines. Mataroria discovers the truth about vaping. And can Sam uncover the secret to eternal youth?

G Sam tells us the truth about food intolerances. Mataroria looks at whether too much screen time could be harmful to our eyesight. Jayani shares important information about dementia. Gareth answers some common questions about hair.

G Jayani finds out whether Turmeric is really the modern-day miracle it's made out to be. Mataroria investigates the link between hearing loss and headphones. Gareth shares important information about strokes.

G How do we identify what our ideal weight is? Mataroria finds out the truth about body mass. Plus, Sam explains how different genetic traits are dished out, and Gareth investigates some very fishy supplements!

G Jayani looks at the causes behind panic attacks and anxiety. Plus, Sam investigates vocal changes and Gareth discovers the secrets hidden in our poo.

G Gareth finds out why New Zealand is the "gout capital of the world". Mataroria investigates the consequences of repeated concussions. Jayani discovers the benefits of prebiotic and probiotic ingredients.

G Jayani finds out if "hanger" is a real thing, and Gareth discovers the secret to a good night's sleep. Plus, Mataroria investigates some new medical technology - should you trust a robot with your next surgery?

G Mataroria finds out if being dehydrated can impair your judgement while driving, Gareth asks whether cheese really causes nightmares and Jayani looks at osteoporosis.

G Mataroria shares some facts about worms - how do you know if you have them? Gareth tests some of the latest advances in biometrics, Sam looks at breast cancer, and Jayani finds the magic ingredient in Manuka honey.

G Series Finale: The team discuss our sense of smell, prostate cancer and the role of exercise in our bone health.