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Professor Declan Murphy and colleagues Dr. Michael Craig and Dr. Marco Catani from the Institute of Psychiatry at King's College London say they have found differences in the brain which may provide a biological explanation for psychopathy.

Psychopathy is strongly associated with serious criminal behavior (rape, murder, etc.) and repeat offending but despite its heinous aspects the biological basis of psychopathy has remained poorly understood.  Some investigators also attribute social causes in explaining antisocial behaviours. To date, nobody has investigated the 'connectivity' between the specific brain regions implicated in psychopathy. 

The Journal of Clinical Gastroenterology lists three cases of patients suffering from the adverse affects of steroid-enriched dietary supplements.  The cases reported by researchers at Henry Ford Hospital include patients with liver injury and renal failure. 

Last week, the U.S. Food and Drug Administration issued a warning regarding the use of over-the-counter body-building supplements that are illegally enriched with anabolic steroids. 

Researchers believe they have located the original source of malignant malaria; a parasite in chimpanzees of equatorial Africa. 

The biologists think the deadly parasite was transmitted to humans from chimpanzees perhaps as recently as 5,000 years ago and possibly through a single mosquito, according to their genetic analysis.  

Malaria sickens about 500 million people and kills about 1.5 million each year so any data that may lead to a vaccine is good news. It also furthers understanding of how infectious diseases such as HIV, SARS, and avian and swine flu can be transmitted to humans from animals.
Our cells are controlled by billions of molecular 'switches' that react to our environment.  All creatures, from bacteria to humans, must monitor their environments in order to survive. They do so with biomolecular switches, made from RNA or proteins. For example, in our sinuses, there are receptor proteins that can detect different odors. Some of those scents warn us of danger; others tell us that food is nearby.

UC Santa Barbara researchers say they have developed a theory that explains how these molecules work and their findings may significantly help efforts to build biologically based sensors for the detection of chemicals ranging from drugs to explosives to disease markers.
People who engage in 'brain exercise' activities, like reading, writing, and playing card games, may delay the rapid memory decline that occurs if they later develop dementia, according to a study published in Neurology

So is Texas Hold 'Em the key to a healthy brain in old age?   Yes, though crossword puzzles and playing music worked as well.  But you can't gloat over a crossword puzzle.

The study involved 488 people aged 75 to 85 who did not have dementia at the start of the study. They were followed for an average of five years and during that time 101 of the subjects developed dementia. 
Hydrogen is the most common element in the universe and is an insulating gas.  Hydrogen is also the simplest of the elements: it contains one proton and one neutron electron.

But at high pressures hydrogen may turn into a superconductor and scientists at the Carnegie Institution in Washington D.C.,  say they have discovered a hydrogen-based compound that could be helpful in the search for metallic and superconducting forms of hydrogen.

Because hydrogen is so light, quantum theory says that it will have a significant energy even when it is cooled to very low temperatures. This is why hydrogen only solidifies at just 14 degrees above absolute zero.