Not popular on Twitter? You may think it's because you're too honest. Unless you are a celebrity, popularity instead seems to come from conforming to social norms and expectations, so science journalists will complain about Republicans a lot, entertainment journalists will pretend to care about the Kardashians and New York Times journalists will pretend they like having spontaneous social media participation in their job descriptions.

Given the perceived importance of social media, it's no surprise Aalto University found that users admitted faking parts of their online image in order to conform to social norms and expectations. But in looking at Facebook and Last.fm, they instead came to the conclusion that being real is much more acceptable according to social norms.

There are positive aspects of work but some people are unable to detach from it – they work excessively and compulsively. They are workaholics; not like the kind of people who use the term because they work a lot and self-diagnose with psychological fads on an annual basis, but truly compulsive

If you've ever spent any time watching a gecko, you've been impressed by their uncanny ability to adhere to any surface - including upside down on ceilings. 

A new study in the Journal of Applied Physics reveals that  the little lizards can turn the "stickiness" of toe hairs on the bottom of their feet on and off, which enables them to run at great speeds or even cling to ceilings without expending much energy.  Geckos, as well as spiders and insects, have independently evolved the same adhesion system mechanism and have been using it for millions of years. 

Injuries, birth defects and sometimes surgery to remove a tumor can create gaps in bone that are too large to heal naturally, and in the head, face or jaw, they can dramatically alter a person's appearance.

At the National Meeting&Exposition of the American Chemical Society, researchers presented details about a "self-fitting" material that expands with warm salt water to precisely fill bone defects, and also acts as a scaffold for new bone growth.

Researchers at the University of Montreal and CHU Sainte-Justine Research Centre have traced the origins of Attention deficit hyperactivity disorder (ADHD), substance abuse and conduct disorder, and found that they develop from the same neurocognitive deficits, which might explain why they often occur together.

The findings were established by studying the reward sensitivity and decision making patterns of 1,778 European 14-year-olds of comparable demographic profile. The teens were asked to undertake several tasks while undergoing an MRI and answer personality questionnaires. Clinicians also profiled the participants, once at the time of the testing, and again two years later.

The latest outbreak of Ebola virus disease that has claimed more than 1,000 lives in West Africa and poses a serious, ongoing threat to that region: the spread to capital cities and Nigeria —Africa's most populous nation — presents challenges for health care professionals. 

The situation has garnered significant attention and fear around the world, but proven public health measures and sharpened clinical vigilance will contain the epidemic and thwart a global spread, according to a new commentary by Anthony S. Fauci, M.D., director of the National Institute of Allergy and Infectious Diseases (NIAID), part of the National Institutes of Health.