Home > Newsletters > Daily: Love or hate Earth Hour? > Daily Dose: Chronic feelings of loneliness might be in your DNA > Health-in-Motion Updated 30 March 2016 Low on vitamin b12 Vitamin B12 is a nutrient that helps keep the body's nerve and blood cells healthy and helps make DNA, the genetic material in all cells. Vitamin B12 also helps prevent anaemia, that makes people tired and weak. Older adults, those with anaemia or have undergone gastrointestinal surgery, have celiac or Crohn's disease and vegetarians and vegans are prone to Vitamin B12 deficiency. If that's you, have your levels checked by your doctor to determine if and how you should supplement. 0 More in Newsletters A steady routine of physical activity is a crucial component of a healthy lifestyle More: Daily Dose: Chronic feelings of loneliness might be in your DNAHealth-in-Motion advertisement Other news Medical Colonoscopy after 75 may not be worth it Diet and nutrition Eliminating sweetened drinks is the best way to cut kids' sugar intake Fitness Seniors who exercise recover more quickly from injury or illness Medical Sleep paralysis is frightening but not dangerous Parenting Morning sickness may be a sign that all's well Medical Pregnancy problems may foretell future health risks From our sponsors How to still have a good life with diabetes Eye-Q: R50 off! Lose weight Otrivin Menthol relieves sinus congestion Live healthier Love coffee? Your heart may too » What to eat for white teeth Bad foods for teeth-whitening Do any of these drinks cause your teeth to hurt? Savour your coffee – with a bright smile Here's how to stop coffee from staining your teeth while enjoying all its health benefits. Get your groove back! » Get your move on! Morning run? 5 exercises to start your summer fitness regime 6 easy ways to make your workout fun again Some inspiration to make sure your workout routine don't become tedious.