Home > Newsletters > Daily: Love or hate Earth Hour? > Daily Dose: 'Enough is enough,' says Charlize Theron on Aids in SA > Health-in-Motion 12 October 2016 Non-toxic batteries Medical visionaries believe that we’re not far from the day when doctors will routinely give us edible electronic devices to swallow which will diagnose or even treat various diseases. But how does one power these tiny machines without having to worry about how long they’ll survive in the body and whether they are potentially poisonous? One team of scientists is making progress with edible, non-toxic batteries made out of melanin pigments which occur naturally in the skin, hair and eyes. These devices would simply dissolve after having done their job. 0 More: Daily Dose: 'Enough is enough,' says Charlize Theron on Aids in SAHealth-in-Motion advertisement Other news Medical From the nose to the penis – a history of organ transplants Medical How long can Zika last in your sperm? Medical Are you ignoring gum disease? Medical New drug for deadly, super-fast cancer Medical How to avoid addictive painkillers after surgery Medical Meet the boy who can’t feel pain 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.