Humans news stories

A Baffling Brain Defect Is Linked to Gut Bacteria, Scientists Say
13th May 2017 | | Humans

Researchers have traced the cause of a baffling brain disorder to a surprising source: a particular type of bacteria living in the gut.

Scientists increasingly suspect that the body’s vast community of bacteria — the microbiome — may play a role in the development of a wide variety of diseases, from obesity to perhaps even autism.

Related: Bacteria Could Be Responsible For Shifts in Brain Structure in People With IBS

Previously Undetectable DNA Could Be Responsible for Brain Disorders
13th May 2017 | Humans

Recent research reveals that each individual neuron in a human brain may be genetically unique thanks to mutations that occur on a cell-by-cell basis. This area of research is providing insights into risk factors for neurological and psychiatric disorders.

Internet trolls are made, not born, researchers say
13th May 2017 | Humans

You, too, could become a troll. Not a mythological creature that hides under bridges, but one of those annoying people who post disruptive messages in internet discussion groups – “trolling” for attention—and off-topic posters who throw out racist, sexist or politically controversial rants.

Men ‘have bigger brains than women and higher IQs’, according to controversial study
13th May 2017 | Humans

A controversial new study claims that men not only have bigger brains than women – but are actually more intelligent.

But not everyone is convinced by the new study – and other scientists suggest that while men do have bigger brains, women’s may be more efficient.

Origins of Male Domination May Lie in Food
13th May 2017 | | Ancient, Humans

Chemical signatures left behind in the bones of people living thousands of years ago suggest that the introduction of new commodities provided an opportunity for men

Cancer cells shown to co-opt DNA ‘repair crew’
12th May 2017 | | Animal Life, Humans

In experiments with human colon cancer cells and mice, a team led by scientists say they have evidence that cancer arises when a normal part of cells’ machinery generally used to repair DNA damage is diverted from its usual task.

Man dreams in colour for first time during cancer radiotherapy
12th May 2017 | | Humans, Weird

A man has dreamed in colour for the first time after undergoing radiotherapy to treat a tumour on his eye.

The 59-year-old Australian previously dreamed exclusively in black and white. But when he received radiation therapy to the front and side of his head for four weeks, he began dreaming in vivid colour.

Increased cancer rate in US linked to bad environment
12th May 2017 | | Earth, Humans

Improving the worst environments in the US could prevent 39 in every 100,000 cancer deaths.

That’s according to the first study to address the impact of cumulative exposure to environmental hazards on cancer incidence in the US, which found strong links between poor environmental quality and increased rates of cancer.

Widespread vitamin D deficiency likely due to sunscreen use, increase of chronic diseases, review finds
10th May 2017 | | Humans

Results from a clinical review find nearly 1 billion people worldwide may have deficient or insufficient levels of vitamin D due to chronic disease and inadequate sun exposure related to sunscreen use.

Does Parkinson’s disease begin in the gut? New research suggests it does
10th May 2017 | | Humans

They say that “what happens in Vegas stays in Vegas.” But this is definitely not true of the vagus nerve, which wanders from the stomach to the brain, passing through the heart, esophagus and lungs along the way.

Antibiotics linked to double the risk of miscarriage in early pregnancy
10th May 2017 | | Humans

Antibiotics can double the risk of miscarriage if taken during early pregnancy, a new study suggests.

A major review involving more than 95,000 women has found five common classes of the drug were associated with an increased risk, while two others were shown to be safe.

Can Saving Animals Prevent the Next Deadly Pandemic?
10th May 2017 | | Animal Life, Humans

A global disease monitoring network is banking on the idea that healthier wildlife means healthier humans

In the fall of 2014, the deadly Ebola virus jumped from an unknown animal to a 2-year-old boy in Guinea. The virus quickly spread to others around him and began terrorizing West African nations; by April 2016, more than 11,000 people had died.

Meatonomics author says government working with meat and dairy industry to boost consumption
10th May 2017 | | Animal Life, Earth, Humans

David Robinson Simon, a Californian attorney and author, has argued that meat and dairy producers in the US and, increasingly, Australia, are teaming with governments to encourage people to consume more animal products than they otherwise would.

In his book Meatonomics, he laid out the part played by subsidies, legislation and regulation in the provision of meat, eggs and dairy at the prices and in the quantities that consumers had become accustomed to.

Daily dose of cannabis extract could reverse brain’s decline in old age, study suggests
9th May 2017 | | Animal Life, Humans

Researchers have come up with an unusual proposal to slow, or even reverse, the cognitive decline that comes with old age: small, daily doses of cannabis extract.

The idea emerged from tests on mice which found that regular, low doses of tetrahydrocannabinol (THC) – the main psychoactive ingredient in cannabis – impaired memory and learning in young animals, but boosted the performance of old ones.

Alt: Cannabis reverses aging processes in the brain, study suggests

One step closer to finding out how wine may protect your neurons
9th May 2017 | | Humans

Low to moderate intake of red wine can delay the onset of neurodegenerative diseases such as Alzheimer’s and Parkinson’s. Researchers have now found out how wine compounds are protective against neuronal death: they should pass through your stomach first.

To age better, eat better
9th May 2017 | Humans

Much of life is beyond our control, but dining smartly can help us live healthier, longer

To some extent, when it comes to healthy aging, we become what we eat. According to the Centers for Disease Control and Prevention (CDC), one in four deaths results from heart disease, the leading cause of death in the United States.

Crave Sugar? Maybe It’s in Your Genes
9th May 2017 | | Humans

Why do we yearn for the explosive gustatory delight of sugar? Neural feedback loops, sensory pleasures and environmental factors like poor sleep all amplify our desire for a sugar rush. But new research suggests some of us—much more than others—may also be genetically attuned to crave such sweet sustenance.

News stories covering humans, psychology and health.