Marisol Barrios del Villar

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Canadian man in hospital tests negative for Ebola

<b>A Canadian man in hospital with symptoms of a haemorrhagic fever resembling Ebola has tested negative for the virus, a health official says.</b><p>The man had recently returned from a trip to West Africa, which is suffering a deadly outbreak of Ebola.<p>Isolated in a critical condition in Saskatoon, …

Disease

Forget the headlines – schizophrenia is more common than you might think

Which illness frightens you most? Cancer? Stroke? Dementia? To judge from tabloid coverage, the condition we should really fear isn't physical at all. "Scared of mum's schizophrenic attacks", "Knife-wielding schizophrenic woman in court", "Schizo stranger killed dad", "Rachel murder: schizo …

Q&A: The 5 Big Questions in Brain Science

A bioethicist suggests that neuroscience challenges how we view ourselves.<p><b>Advances in our understanding of the brain have turned neuroscience into one of the hottest frontiers in research, and in ethics. (See "Beyond the Brain.")</b><p>On Wednesday, the U.S. Presidential Commission for the Study of …

What Comes After Antibiotics? 5 Alternatives to Stop Superbugs

"Superbug" bacterial infections that are resistant to common antibiotics are increasing at an alarming rate. But traditional antibiotics aren't the only way to battle dangerous germs. Biomedical scientists are investigating new additions to their arsenal.<p>"Superbug" bacterial infections that are …

Mini Implantable Microscopes to Watch Living Cells Inside the Body

How miniature, implantable microscopes will cut down on the need for invasive medical testing.<p><b>To get an up-close look at a patient's tissue</b>, a doctor typically does a biopsy—chops off a tiny chunk of organ or tumor and sends it to a lab for processing. The lab encases the tissue in paraffin wax, …

The Shape of Your Head and the Shape of Your Mind

How the archaic study of brain shape and head reading — the origin of terms like “highbrow” and “lowbrow,” “well rounded,” and “shrink” — shaped the modern obsession with the mind. One reason phrenology attracted so many followers was that it seemed to provide the toolbox for the American dream.<p>To …