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Many membrane proteins serve as gateways in and out of the cell. Because they act as “traffic control” for infectious agents and disease-fighting drugs, they are the targets of more than 60 percent of all drugs on the market. Yet of the estimated 30,000 membrane proteins in the human body, scientists understand the detailed structures of only 18.

Scientists have found that the capacity of the human brain to process and record information - and not economic constraints - may constitute the dominant limiting factor for the overall growth of globally stored information. These findings have just been published in an article in EPJ B by Claudius Gros and colleagues from the Institute for Theoretical Physics at Goethe University Frankfurt in Germany.

Scientists have found that the capacity of the human brain to process and record information - and not economic constraints - may constitute the dominant limiting factor for the overall growth of globally stored information.

About 7 percent of adults and teens in the United States are orally infected with the human papillomavirus, or HPV, a new study says.

Sonar and ultrasound, which use sound as a navigational device and to paint accurate pictures of an environment, are the basis of countless technologies, including medical ultrasound machines and submarine navigation systems. But when it comes to more accurate sonar and ultrasound, animals' "biosonar" capabilities still have the human race beat.

Two books and one TV series explore the oddities of the human mind. Extraordinarily complex as the human brain may be, it is far from perfect.

By Ewen Callaway of Nature magazine New descriptions of Australopithecus sediba fossils have added to debates about the species' place in the human lineage.

By Carey Gillam KANSAS CITY, Missouri (Reuters) - Raging wildfires and scorching heat across the South over the last week, added to the human, economic and agricultural toll of a historic drought that climatologists said was only growing more dire. [More]

By Marian Turner of Nature magazine The unique physiology of the human liver means that the toxicity of some candidate drugs is not picked up during preclinical tests in animals. [More]

Chronic pain affects at least one in three adults in the U.S., which is more than the sum total of those with heart disease, cancer and diabetes combined. For many of these 116 million Americans, their pain is severe and eludes available treatments. In addition to the human suffering, the monetary cost of medical treatment and lost productivity has reached $635 billion a year

Astronomers’ research on celestial bodies may have an impact on the human body. Ohio State University astronomers are working with medical physicists and radiation oncologists to develop a potential new radiation treatment – one that is intended to be tougher on tumors, but gentler on healthy tissue.

(PhysOrg.com) -- Most of the invisibility cloaks that have been demonstrated to date conceal objects at frequencies that are not detectable by the human eye.

Smaller fleas: What appears as a mere speck to the human eye has plenty of character when observed under a microscope. [More]

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Commentary: The new finding that half of American men may be infected with the human papillomavirus makes it undeniable that the virus that causes cervical and other cancers is a guys' issue.