Home > Newsletters > Daily: Love or hate Earth Hour? > Daily Dose: Poo now in pill form to treat gut infection > Health-in-Motion 08 February 2017 Mixtures of alcohol and highly caffeinated energy drinks Mixtures of alcohol and highly caffeinated energy drinks are very popular party beverages among young folks, but a recent study has found that combining the two may trigger changes in the adolescent brain that are similar to taking cocaine and may have lasting effects into adulthood. "It seems the two substances together push them over a limit that causes changes in their behaviour and changes the neurochemistry in their brains," says study co-author Richard van Rijn. "We're clearly seeing effects of the combined drinks that we would not see if drinking one or the other." 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?