A new study shows that a protein found in hair, skin and wool is better at protecting teeth than fluoride. We speak to Dr Sherif Elsharkawy from King’s College London about how keratin toothpaste can stop tooth decay.

Children who vape are three times more likely to become smokers, that's according to an umbrella review published in Tobacco Control.

UK ‘agreed to drop’ Apple data demand in privacy row, US chief says. Read more here.

Plus, a new moon has been discovered orbiting Uranus

Also in this episode:

• Meta announces a restructure of its AI departments

• Thousands object to Tesla's bid to supply energy to UK homes

• Radio waves could improve sense of smell in humans

• Fireball lights up night skies across southern Japan

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