A U.S. study published in January 2012 in the journal Injury Prevention has stated that the number of injuries and deaths of pedestrians wearing headphones in the United States has nearly tripled over the past six years.

Two Australian scientists contend that caffeine toxicity, including hallucinations, seizures, and heart attacks, is a possible consequence of drinking too many energy drinks – especially in adolescents.

A January 2012 published study from the United States shows that nicotine replacement therapies (NRTs), such as nicotine patches, are no better than "going cold turkey" at preventing the relapse back to smoking after quitting.

According to a new study from the U.S. government, hospital employees only report about one out of seven medical errors, which relates to problems for about 9 million people annually.

A study conducted within the United Kingdom shows that an impairment of mental function may begin as early as 45 years of age. Such a problem is an early sign of dementia, of which Alzheimer’s disease is one common form.

A December 2011 American study has concluded that 30.2% of Americans are arrested by the age of 23 years. The author states that "Arrest is a pretty common experience."

Scientists from Australia have developed a vaccine they hope will stop the progression of Alzheimer’s disease. It works on lab mice and humans trials will soon begin.

The scientist who developed the bionic ear, Professor Graeme Clark, has joined Australia’s Information and Communications Technology Research Centre of Excellence, NICTA, to lead a project aimed at developing technologies capable of providing new types of hearing implants that can improve various aspects of auditory perception for hearing loss patients.

The poll ratings of the Australia federal Labor government are likely to drop further if it gives in to draconian new proposals made by the US as part of the secret Trans Pacific Partnership Agreement.

A U.S. study, whose results were published in September 2011, has shown that men who have never been fathers are at the most risk from death of cardiovascular (heart) disease.

A new U.S. study shows that women who drank the equivalent of one beer or a small glass of wine daily had less risk from chronic medical conditions such as cancer, cardiovascular disease, and diabetes than nondrinkers or those who drank much more.

A recent study from the United Kingdom found that the taller a woman is in height the higher chance she has of getting ten common types of cancer, including breast and kidney cancer.

A 2011 study from U.S. researchers shows that cancer targets sex (gender): a much higher percentage of men die from cancer than do women.

An Australian study finds that gum disease of the teeth, what is called periodontitis, can take a woman longer to get pregnant.

An American/Canadian study of mothers has concluded that spanking children under the age of two years does not help in disciplining them because they don't understand at that age; and it also hurts their developing brains.

The Australian government is thinking about banning advertisements of junk food on TV because the fast-food industry has not voluntarily cut the number of ads to help reduce childhood obesity.

According to 2011 research published in the journal The Lancet, 347 million people in the world have diabetes (as of 2008), which is over double the number from 1980. It is especially high in the U.S. and Australia, two countries with the highest rates of obesity, too.

A June 2011 study published in the New England Journal of Medicine shows what foods are the worst for gaining weight, and what foods are the best for losing weight.

An American study, which is considered the most comprehensive ever conducted, found that childhood food allergies in the United States are more common and more dangerous that previous thought. In fact, twice as common as previously believed.

The U.S. Food and Drug Administration (FDA) released the final nine pictorial warnings that will appear on all cigarette packs, cartons, and advertisements in the United States no later than September 2012.