Freckles: Evolutionary Advantage or 'Cancer Factories'?
May 30, 2013
FORA.tv / Powered by NewsLook.com
Throughout the history of Homo sapiens, skin pigmentation has been a highly labile trait, and similar skin tones have evolved independently numerous times. Skin pigmentation results from an evolutionary compromise between the conflicting demands of protection against ultraviolet radiation and production of vitamin D, and represents one of the best examples of evolution by natural selection acting on the human body. Because skin color is one of the most visible of human traits, it has been used as the primary characteristic for classifying people into races. Dr. Jablonski will discuss the history of skin-based race concepts and the meaning of skin color in the modern world, including its implications for health.
AP (July 22, 2013) Chemo hair loss can be as traumatizing as cancer itself, but a handful of breast cancer patients kept much of their hair through use of cold cap systems. They're not FDA approved, but one cancer ... watch video
TheStreet (June 4, 2014) One thing cancer does is teach you about life, says Mark Herzlich, New York Giant and author of "What It Takes". An All-American at Boston College, Herzlich overcame Ewing's sarcoma, a rare bonce ... watch video
AP (Sep. 16, 2013) A growing number of US students with autism and other learning disabilities are taking advantage of newly available support services to help them fit in on campus and earn their degrees. ... watch video
FORA.tv (May 23, 2013) Gamification began as a tactical way to raise engagement in marketing and human resources. Now, leading companies are beginning to see it as a strategy that can transform their organizations and help ... watch video
AFP (Apr. 1, 2015) The governments of Liberia and Sierra Leone have been busy fighting the menace created by the deadly Ebola virus, but illicit drug lords have taken advantage of the situation to advance the drug ... watch video
Reuters - Business Video Online (July 6, 2015) Aetna's $37 billion deal to buy Humana could come under scrutiny because of its big combined share of the Medicare Advantage business in some states. Fred Katayama reports.
Video provided by ... watch video
AP (Aug. 9, 2013) Researchers have begun an ovarian cancer detection study that relies on dogs' keen sense of smell. The University of Pennsylvania's Working Dog Center is training three canines using blood and tissue ... watch video
Nov. 26, 2015 Researchers in Italy, Germany and the United States have identified a regulatory protein crucial for the development of cerebral cavernous malformation -- a severe and incurable disease mainly ... read more
Nov. 27, 2015 Sarcasm, white lies and teasing can be difficult to identify for those with certain disorders. For those who suffer from diseases like Alzheimer's or Parkinson's, or neurodevelopmental conditions ... read more
Nov. 27, 2015 Cognitive behavioral therapy could help many people with a dental phobia overcome their fear of visiting the dentist and enable them to receive dental treatment without the need to be sedated, ... read more
Nov. 27, 2015 Even patients over the age of 75 may recover from severe traumatic brain injury, suggests new research. This is the first study to describe the results of surgically treated ... read more
Nov. 24, 2015 Authors of new Cochrane Review remain uncertain about effect of widely used medicine on ADHD symptoms, despite large amount of research. Some evidence of increased sleeplessness and loss of appetite ... read more
Nov. 25, 2015 Patients experienced no serious adverse reactions after receiving infusions of as many as 2.6 billion cells that had been specially selected to protect the body's ability to produce insulin, report ... read more
Nov. 25, 2015 A new approach to 'vitrification,' or ice-free cryopreservation, has been discovered, which could ultimately allow a much wider use of extreme cold to preserve tissues and even organs for later ... read more
Nov. 25, 2015 Arthritis patients could one day benefit from a novel form of medicine, according to researchers. Their early study indicates that arthritic cartilage, previously thought to be impenetrable to ... read more
Dec. 5, 2014 Skin colour varies according to the latitude and, therefore, according to the intensity of incident ultraviolet light: individuals living at low latitudes have darker skin, whereas those living at ... read more
Nov. 7, 2013 In a recent study, researchers took skin color measurements from local residents in India to quantify the range and extent of variation in skin pigmentation phenotype and found that one of the ... read more
Feb. 17, 2013 As people move more often and become more urbanized, skin color -- an adaptation that took hundreds of thousands of years to develop in humans -- may lose some of its evolutionary advantage, ... read more
Feb. 20, 2011 Variations in skin color provide one of the best examples of evolution by natural selection acting on the human body and should be used to teach evolution in schools, according to an ... read more