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 31 August 2017 What makes some memories particularly memorable? What makes some memories particularly memorable? According to psychologist Per Sederberg, it’s their slightly peculiar nature. "You have to build a memory on the scaffolding of what you already know, but then you have to violate the expectations somewhat. It has to be a little bit weird," he explains. Another way to long-lasting memories is to form associations with other recollections and link them to each other in multiple ways. Sederberg notes that the most unforgettable moments are ones that occur in a familiar context, but somehow violate the ordinary. 0 More: Daily Dose: This is why your vanilla or cinnamon flavoured e-cigarette is toxicHealth-in-Motion advertisement Other news News Second wave of hormone shortage a crisis in SA transgender community Sex STD rates continue to rise in the US News The project that’s generating an income for people with disabilities Workflow 'Smartphone slouching' more serious than it sounds Diet and nutrition Here's why a regular cup of tea is good for you Medical Vision problems strike more than 2 billion globally Live healthier Lifestyle » E-cigarettes: Here are five things to know E-cigarettes have become hugely popular in the past decade, but a rash of vaping-linked deaths and illnesses in the US is feeding caution about a product that's already banned in some places. Allergy » Ditch the itch: Researchers find new drug to fight hives A new drug works by targeting an immune system antibody called immunoglobulin E, which is responsible for the allergic reaction that causes hives.