As many as one in 500 men may carry an extra sex chromosome — either an X or a Y — but very few of them likely know about it, a new study suggests.

The research, published June 9 in the journal Genetics in Medicine(opens in new tab), included data from more than 207,000 men who provided information to the U.K. Biobank, a repository of genetic and health data from half a million U.K.-based participants. Typically, males carry one X- and one Y-shaped sex chromosome in each of their cells, but among the study participants, there were 213 men who carried an extra X chromosome and 143 that had an extra Y.

In late April, Irina Danilovich, a nurse from Crimea, was kidnapped by four men wearing civilian clothing and balaclavas. After two weeks of searching, her friends and lawyers managed to learn she was being held in a pre-trial detention center in Simferopol on charges of illegally storing explosives. Irina herself has denied the charges and says the case is fabricated; the Russian Justice Ministry says she’s a “foreign agent.” She’s currently still in custody.

When someone gets an infection, most people think it’s the immune system kicking into gear when they feel some of the body’s natural defenses like a fever, chills, or fatigue. What most people don’t know is that it’s actually the brain behind all of this.

Anton Fedoseyev, a 21-year-old from Russia’s Leningrad region, died near Kharkiv in May 2022. Fedoseyev was born with a birth defect that affected his face and had long dreamed of getting plastic surgery. He signed a contract with the army to earn money to pay for the operation. He spoke to Sever Realii, a division of Radio Free Europe/Radio Liberty, before his death.

Certain chemical compounds trigger a stressful response. Scientists recently discovered something about male mice that's utterly bananas: The distinctive scent of a banana stresses them out.

The Covid-19 pandemic has caused a prolonged increase in workload and stress among specialists in many healthcare sectors, but this has been particularly noticeable in emergency medicine (EM). A survey carried out by the European Society for Emergency Medicine (EUSEM) among EM professionals in 89 countries showed that 62% of the responders had at least one symptom of burnout syndrome, and 31.2% had two. Results from the survey are published today in the European Journal of Emergency Medicine.

"The world remains unprepared for the next pandemic threat", The Lancet reports. "The consequences of not ending the acuity of this pandemic are more illness and death, health systems stretched to the limit, deepening social divisions, widening economic inequalities, and further losses to individual households." Lancet delivers detailed recommendations:

Some macrophages help the human body fight SARS-CoV-2 without systemic inflammation. But an aggressive subset of these immune molecules instead starts a cascade of events that can lead to multi-organ failure, researchers have discovered.

Prolonged levels of stress and depression during the COVID-19 pandemic contributed to altering key features of fetal brain development — even if the mother was not infected by the virus. This is what a study published in Communications Medicine suggests after following more than 200 pregnant women. The study, led by Children’s National Hospital experts, emphasized the need for more scientific inquiry to shed light on the long-term neurodevelopmental consequences of their findings and COVID-19 exposures on fetal brain development.

Entropy and chaos are terms used to characterize physical systems. The development of such systems with time are typically described as trajectories in phase space. In the past years these terms have been used in signal analysis, whereby one creates a trajectory in m-dimensional phase space by plotting m adjacent points of the signal as a curve in m-dimensional space as the m-points of the signal move through the entire signal.