Home > Newsletters > Daily: Love or hate Earth Hour? > Daily Dose: Neglected rural pets pose scabies risk for humans > Health-in-Motion 25 October 2016 Selenium is an important nutrient Selenium is an important nutrient that forms an essential part of the human diet. Particularly good sources of this trace element include foods like fish, eggs, certain nuts, such as Brazil nuts, shellfish, meat and milk. But what exactly is selenium good for? German medical researchers have recently demonstrated that high concentrations of selenium in the blood may be associated with a lowered risk of developing liver cancer and possibly other types of cancer as well. 0 NEXT ON HEALTH24X Bringing movies to the people with the power of the sun 30 minutes ago Partner content More: Daily Dose: Neglected rural pets pose scabies risk for humansHealth-in-Motion advertisement Other news Medical WATCH: South Africa teenager shares her battle against TB News QUIZ: How often do you take a sick day? Medical 4 tips for frequent flyers to prevent back pain Diet and nutrition Sugar tax too low to work Medical QUIZ: 10 facts and myths about asthma Lifestyle High-tech acne treatments 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?