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Larger Families Reduce Cancer Risk

Researchers from the Institute of Evolutionary Medicine of the University of Zurich and the Adelaide Medical School have analyzed data from 178 countries and found a link between family size and cancer risk. Worldwide the incidence of various types of cancer increases with smaller family size. “And this relationship is independent of income, levels of urbanization and age,” explains Professor Maciej Henneberg, academic guest at UZH and senior author of the study.  

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Role of “Natural Factors” on Recent Climate Change Underestimated, Research Shows

The study, by Dr Indrani Roy at the University of Exeter, suggests that the natural phenomena such as solar eleven-year cycles and strong volcanic explosions play important roles in recent climate change which has been ‘underestimated’.

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Chewing Gum May be Effective for Delivering Vitamins

Nearly 15 percent of all chewing gum varieties sold promise to provide health-enhancing supplements to users, so Penn State researchers studied whether two vitamin-supplemented products were effective at delivering vitamins to the body. Their results validate the concept of gum as an effective delivery system for at least some vitamins.

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Boxing Up Ag Field Nitrogen

Spring in America’s heartland is often wet. That makes its soil too soft for planting. One solution to that issue is tile drainage. Growers insert a series of pipes (drain tiles) under their fields, which drains water from the soil into nearby streams and lakes. 

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Wild Chimpanzees Share Food With Their Friends

Why share food with non-family members when there is no immediate gain? An international team of researchers from the Max Planck Institute for Evolutionary Anthropology (MPI-EVA) in Leipzig, Germany, conducted observations of natural food sharing behavior of the chimpanzees of the Taï National Park, Ivory Coast. They found that chimpanzees who possess large, desirable food items, like meat, honey or large fruit share food with their friends, and that neither high dominance status nor harassment by beggars influenced possessors’ decisions to share.

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Singing Lessons: New study shows young birds learn from adults

Just like humans, young songbirds are thought to learn their vocalizations by listening to adults — a process that has been studied in the laboratory but never experimentally in the wild, until now.

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September was 3rd wettest, 4th warmest on record for U.S.

Heat and lots of rainfall, thanks in part to Hurricane Florence, were the key factors in last month’s ranking as fourth hottest and third wettest September on record for the contiguous United States.

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Half of Mental Health Disorders Arise in Adolescence

Half of mental health disorders arise before the age of 14, but most cases are not detected or treated until much later, according to the latest data from the World Health Organization.

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Brain Circuits for Successful Emotional Development Established During Infancy

Researchers in the UNC Early Brain Development Study tracking the development of the brain’s emotion circuitry in infancy found that adult-like functional brain connections for emotional regulation emerge during the first year of life. And the growth of these brain circuits during the second year of life predicted the IQ and emotional control of the children at 4 years old, suggesting new avenues for early detection and intervention for children who are at risk for emotional problems.

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Polar Bears Gorged on Whale Carcasses to Survive Past Warm Periods, but Strategy Won’t Suffice as Climate Warms

Polar bears likely survived past warm periods in the Arctic, when sea ice cover was low, by scavenging on the carcasses of stranded large whales. This food source sustained the bears when they were largely restricted to land, unable to roam the ice in search of seals to hunt.

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