Coming soon: Battery-free pacemakers powered by the heart?

Pacemaker batteries eventually wear down, and have to be replaced every five to 12 years - so, some scientists have been working an alternative: battery-free pacemakers that in theory would never have to be replaced.

  • ACNE Acne is a skin condition that occurs when the sebaceous (oil-secreting) glands in the skin become clogged and inflamed, and infected by bacteria.
  • ADHD Attention Deficit Disorder (ADD) and attention deficit hyperactivity disorder (ADHD) are neurological syndromes, found in children as well as adults.
  • BACKACHE Back pain can occur anywhere along the spine, but the most common site is the lower back or lumbar region.
  • CANCER Cancer is the uncontrolled growth of abnormal cells in the body and can develop in almost any organ or tissue.
  • COUGH The cough reflex is a vital part of the body’s defence mechanisms. Dust or dirt particles that enter the airways allow the possibility of infections.
  • DEPRESSION Depression is a medical illness which affects one’s mood, body, thoughts and feelings. There are several types and sub-types of depression.
  • DIABETES Diabetes is one of the most common chronic conditions in the world and occurs when the body fails to process glucose correctly.
  • EYE Though many eye health problems may be minor and will clear up with self-treatment, some may be serious and demand urgent medical attention.
  • FLU Flu (or influenza) and colds are caused by viruses that infect the nose, throat, sinuses, upper airways and lungs.
  • ERECTILE DYSFUNCTION Erectile dysfunction (previously called impotence) is the inability to get or maintain an erection that is sufficient to ensure satisfactory sex for both partners.
  • HEART Heart disease is the number one killer in South Africa. 1 in 3 men and 1 in 4 women will develop a heart condition before the age of 60.
  • More evidence flu vaccine is safe during pregnancy A new large-scale, long-term study suggests that that flu vaccines won't harm the foetuses of pregnant women.
  • Car crash risk much higher for US teens with ADHD US teenagers with ADHD are more at risk of a car accident in their first month of driving than their peers.
  • South African researchers develop quicker way to detect drug resistance Local man develops resistance to new TB medicine despite good adherence.
  • Suspect your child has an ear infection? There may soon be an app for that A new app has spotted ear infections with high accuracy in new research - in what could potentially be a game-changer for parents and healthcare workers alike.
  • ARV shortage a threat to children's lives Parents are resorting to sharing their HIV treatment with their children as confusion over paediatric stockouts continues.
  • Bad breath? The problem might be your nose Wondering what might be causing your bad breath? Post nasal drip could be the culprit.
  • What is 'salt therapy' and can it help with sinusitis? Here's a look into what salt therapy entails and just how helpful it actually is.
  • How does constipation happen? What really happens inside our bodies when we become constipated?
  • Faster, more accurate method of diagnosing heart attack patients Researchers have developed a new method of diagnosing heart attack patients in the emergency department that is more accurate and faster than current methods.
  • Intensive blood pressure control may help preserve brain health Preliminary evidence indicates that aggressively treating high blood pressure reduces the risk of mild cognitive impairment and dementia.
  • Drop the word 'cancer', and patient choices change There's a growing consensus among cancer doctors that removal of the thyroid gland is an overreaction in most thyroid cancers.
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E-cigarettes have become hugely popular in the past decade, but a rash of vaping-linked deaths and illnesses in the US is feeding caution about a product that's already banned in some places.

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Ditch the itch: Researchers find new drug to fight hives

A new drug works by targeting an immune system antibody called immunoglobulin E, which is responsible for the allergic reaction that causes hives.