Home > Newsletters > Daily: Love or hate Earth Hour? > Daily Dose: This is why your vanilla or cinnamon flavoured e-cigarette is toxic > Health-in-Motion 30 January 2018 What is the source of human intelligence? What is the source of human intelligence? Some neuroscientists believe that it is housed in a single region of our brain. Recently, however, a US researcher has come up with a different answer, suggesting that it is the brain’s agility in adjusting the connections between its different parts and between different neural network states when responding to various mental challenges which make us smart. “The entire brain – its global architecture and the interactions among lower- and higher-level mechanisms – is required for general intelligence," explains the University of Illinois’ Aron Barbey. 0 More: Daily Dose: This is why your vanilla or cinnamon flavoured e-cigarette is toxicHealth-in-Motion advertisement Other news Diet and nutrition 3 ways to improve your eating habits Fitness Why you need to choose your running shoes carefully Diet and nutrition What is oat milk – and is it even good for you? Medical How the build-up of proteins in the heart often goes undiagnosed, even though it's potentially fatal News Gogos receive first aid training Mental health Joburg mom of teen diagnosed with psychopathy: 'I cried for days on end' Live healthier Heart health » 5 women share exactly what it feels like to have a heart attack 'I felt like I had a pill stuck in my throat.' Diet & Nutrition » 8 benefits of gherkin juice that will make you want to drink some ASAP Goodbye, salt craving.