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Science News Archive 2017 - Page 75


Page 75 of 461

Smoking may cause inflammatory bowel disease

A new study reveals that cigarette smoke triggers colitis, an inflammation of the colon, in mice exposed to cigarette smoke. The researchers identified CD4+ T cells and a pro-inflammatory protein as the immune cells responsible for this effect. This finding could lead to the development of new treatments for Crohn's disease.

SourceFrontiers·JournalFrontiers in Immunology·DateOct 31, 2017

Humans don't use as much brainpower as we like to think

A study published in the Journal of Human Evolution found that humans do not have uniquely expensive brains, challenging a major dogma in human evolution studies. Researchers measured the cross-sectional area of cranial arteries and brain glucose uptake to compare brain costs across 22 species.

SourceDuke University·JournalJournal of Human Evolution·DateOct 31, 2017

Stay focused, if you can

A study by University of Miami researchers found that individuals with specific patterns of salience network dynamics were better able to resist tempting distractors and perform tasks. The study, published in Social Cognitive and Affective Neuroscience, sheds new light on the neural mechanisms underlying self-control and temptation res...

SourceUniversity of Miami·JournalSocial Cognitive and Affective Neuroscience·DateOct 31, 2017

Lemurs are weird because Madagascar's fruit is weird

A new study reveals that Madagascar's fruit is too low in protein for lemurs to sustain themselves, prompting them to adopt a leafy diet and develop unusual behaviors like hibernation. The research sheds light on the evolution of lemurs' dietary habits and highlights their unique characteristics.

SourceField Museum·JournalScientific Reports·DateOct 31, 2017

Study shows voting does not reduce crime

A new study published in Political Behavior suggests that voting alone does not directly reduce criminality and may not foster good citizens. The research analyzed a large-scale field experiment involving over 550,000 young adults aged 18-20 in the US, finding no correlation between voting and reduced crime rates.

SourceYale University·JournalPolitical Behavior·DateOct 31, 2017

Research links locus coeruleus activity with hyperarousal in PTSD

A new study in Biological Psychiatry provides direct human evidence for a decades-old theory linking heightened arousal and reactivity in posttraumatic stress disorder (PTSD) to overactivity of the locus coeruleus (LC), a brain region that mediates arousal and reactivity. The study found that participants with PTSD exhibited increased ...

SourceElsevier·JournalBiological Psychiatry·DateOct 31, 2017