Infrasound is very low-frequency sound, below 20 Hertz (Hz), which humans typically can’t hear. It can come from natural sources like storms, or from anthropogenic sources like traffic. Some animals use it to communicate, while others avoid it. Scientists investigating humans’ ability to sense infrasound determined that we can’t detect it, but we do respond to it: it’s linked to increased irritability and higher cortisol levels.

A team of Marshall University researchers has published a new study suggesting a potential breakthrough in how doctors manage severe agitation caused by methamphetamine and/or cocaine use, particularly in cases in which opioids have also been used. Michael Hambuchen, PharmD, Ph.D., with Marshall’s School of Pharmacy and Todd Davies, Ph.D., at the Joan C. Edwards School of Medicine, are studying the use of dexmedetomidine-naloxone for treatment. Their preclinical study was published in the Journal of Pharmacy of Pharmaceutical Sciences and is available here.

Checking blood pressure daily at home could cut the risk of a future heart attack or stroke for new mothers who had high blood pressure during pregnancy, based on a study published in the journal Hypertension.

A new study from the Jean Mayer USDA Human Nutrition Research Center on Aging (HNRCA) at Tufts University suggests that the children of a parent who lived to age 100 or older tend to have slightly healthier eating habits than those who do not come from such a robust lineage. The research offers one of the first comprehensive looks at the dietary habits of centenarian offspring, a group that shares roughly half of their parents’ longevity genes and many years of their life environments.

Children and young people from deprived areas with mental health conditions are less likely to access mental health services, according to a new study led by experts from the University of Nottingham.