Dealing with radicals


  • Health
  • Sunday, 11 May 2003

IT wasn’t until the late 1800s that man understood why oil turned rancid when exposed to air. The rancidity of fats and oils was one of the first things related to reactive oxygen species (ROS) or free radical effects.  

Dr Denham Harman, a Professor Emeritus of Medicine and Biochemistry at the University of Nebraska was the pioneer to imply free radicals as a major cause of ageing and disease. His theory was published in the Journal of Gerontology in 1956 titled Ageing: a theory based on free radical and radiation chemistry. His theory was way ahead of his time but today science has corroborated the impact of free radicals on our health. Free radicals are implicated in more than 50 disorders including cardiovascular disease, cancer, cataract and dementia.  

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