Home > Newsletters > Daily: Love or hate Earth Hour? > Daily Dose: 'Enough is enough,' says Charlize Theron on Aids in SA > Health-in-Motion 01 November 2016 Our memories tend to become increasingly hazy as we get older. Our memories tend to become increasingly hazy as we get older, perhaps because our brains naturally start shrinking from the age of 40. The exceptions are what researchers are calling ‘superagers’. These folks are genetically predisposed to retaining a good memory even at an advanced age. To qualify, you have to be older than 80 and perform as well as 55-year-old in memory tests. Using MRI scans, scientists have discovered that their brains shrink by an average of only 0.8 per cent compared to the normal rate of around 2 per cent. 0 More: Daily Dose: 'Enough is enough,' says Charlize Theron on Aids in SAHealth-in-Motion advertisement Other news News 80% of SA women believe the female condom 'puts them in charge' News These conditions that most likely affect you are 'overwhelming' SA Medical This 'terrible twin' is killing more South Africans News Do this health quiz and we will tell you how smart you are Medical From the nose to the penis – a history of organ transplants Medical How long can Zika last in your sperm? From our sponsors Johannesburg conference to tackle digital transformation in healthcare WIN a R2000 voucher. Great skin is just a click away! How erectile dysfunction can affect relationships Coital incontinence: the ‘oops’ women are too afraid to talk about Live healthier Myths busted! » Breastfeeding may reduce pain from C-section Breastfeeding and work - how to make it work 9 breastfeeding myths busted Breastfeeding will help me lose my baby weight, right? Wrong! We bust nine myths about breastfeeding. Eat right. » How watching porn can cause erectile dysfunction 7 scientific ways to cure erectile dysfunction 7 foods that could relieve erectile dysfunction If you experience erectile dysfunction from time to time, you may be able to manage the problem without any medical help.