Data Dump: 11,000 Donate Stool Samples to Gut Microbiome Project

By Greg Watry

The American Gut Project has just produced the largest study yet of microbial diversity in human poop. With “contributions” from more than 11,000 citizen scientists, the team led by researchers at UC San Diego has compiled a public reference database on the human gut microbiome, published May 15 in the journal mSystems. The study is a step forward in understanding how factors such as diet, antibiotics and mental health relate to the microbes living in the human gut.

For Better Or Worse: Links Between Genetics And Stress

By Diane Nelson

Our genes can influence how we respond to stress. Science shows that some people are more genetically predisposed than others to develop depression and anxiety in response to stressful situations.

UC Davis psychologists Johnna Swartz (left) and Jay Belsky.

UC Davis psychologists Johnna Swartz (left) and Jay Belsky have found that genetic traits that make people vulnerable to stress-related mental health problems, are also those best equipped to respond to positive interventions.

What’s more, researchers say that chronic exposure to stressful conditions—such as poverty, family discord, and poor nutrition—can alter the way genes behave in children and adolescents, making them more susceptible to depression, anxiety, and other negative effects of stress.

Video Games a Viable Treatment for Depression

People play more often when they receive reminders, study finds

By Karen Nikos-Rose

Video games and “brain training” applications are increasingly touted as an effective treatment for depression. A new UC Davis study carries it a step further, though, finding that when the video game users were messaged reminders, they played the game more often and in some cases increased the time spent playing.

“Through the use of carefully designed persuasive message prompts … mental health video games can be perceived and used as a more viable and less attrition-ridden treatment option,” according to the study.