Home > Newsletters > Daily: Love or hate Earth Hour? > Daily Dose: Poo now in pill form to treat gut infection > Health-in-Motion 21 February 2017 Can humanity engineer itself to greater intelligence? Can humanity engineer itself to greater intelligence? American entrepreneur Bryan Johnson thinks so. His start-up company Kernel is reported to have invested US$100 million into developing an electronic device that can be implanted into a person’s brain in order to increase their smarts by stimulating and enhancing their grey matter. Johnson believes “that human intelligence will be one of the largest industries, if not the largest industry, to ever emerge,” but his critics doubt whether the technology will actually work and raise questions about its ethical implications. 0 More: Daily Dose: Poo now in pill form to treat gut infectionHealth-in-Motion advertisement Other news Medical SA researchers find urine test better for rapid TB testing Medical SEE:7 of the world's most famous TB patients Medical TB patients dying without dignity as drug resistance soars Medical Diabetes: You can have a cheat meal and stay healthy Lifestyle Oil foils: your skin-care guide for acne-prone skin Medical SEE: How long should a cough last? From our sponsors How to care for your vaginal flora Live healthier Hello? » SEE: Interesting facts about hearing loss Earworms: Let it go Is it bad to sleep with earplugs all the time? SEE: Do women hear better than men? The reason why men often appear not to be listening could be because they actually can't hear you. Confident smile? » Acidic drinks can harm your kids' smiles The facts on bleaching your teeth Am I taking good care of my teeth? Why are my teeth stained? We know the rules – brush your teeth twice a day and floss to keep them healthy. But, have you ever wondered what causes those stains that sometimes appear?