Farewell regular flat white. 'Functional' coffees are hitting the high street

a type of mushroom - for the past three years. He says it gives him a "really clear, focused feeling", withou… [+7594 chars] Zak Haddad has been kickstarting his day with a cup of coffee infused with lion's mane - a type of mushroom - for the past three years. He says it gives him a "really clear, focused feeling", withou… [+7594 chars] BBC News