Home > Newsletters > Daily: Love or hate Earth Hour? > Daily Dose: 5 diseases you risk getting if we run out of water > 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: 5 diseases you risk getting if we run out of waterHealth-in-Motion advertisement Other news Medical 'Dead' man snores back to life right before his autopsy Fitness What's the deal with pain after exercise? Fitness 10 triathlon mistakes to avoid Fitness 5 reasons you shouldn't exercise with headphones Lifestyle Is giving up booze for a month actually worth it? Lifestyle Floater alert: Here’s what it means if your poop floats From our sponsors Managing diabetes in the workplace Back-to-school with diabetes Discover treatments that can help reduce acne What can I do to reduce or remove acne marks? Live healthier Fact or myth? » Clearing up the confusion around coconut oil Coconut – the 'fruit of life' Can coconut oil really help you lose weight? Experts dish on the high-cal weight-loss tactic. Sobering perks! » 5 tips to avoiding a hangover Can you really be allergic to alcohol? Is giving up booze for a month actually worth it? Many people commit to "Dry January" – but does it do your body any good?