When it comes to sleep, need and ability are two different things. “It’s pretty clear that sleep ability decreases with age,” says Michael Grandner, director of the Sleep and Health Research Center at the University of Arizona College of Medicine – Tucson. Many older adults assume that their inability to sleep soundly or for extended periods is a sign that they don’t need as much rest. But that’s probably not true, Grandner says.

One of the unsolved mysteries about COVID-19 is why it has a lesser impact on children, even kids with asthma. University of Arizona pediatric researcher Fernando Martinez, director of the Asthma and Airway Disease Research Center, says children in general are at lower risk for COVID-19, but why the disease does not affect those with asthma is especially interesting.

Despite some issues with availability, data from the U.S. Centers for Disease Control and Prevention show most people are receiving the second dose of the COVID vaccine on time. But some people are reporting more serious side effects with the second dose. One University of Arizona expert says that means the vaccine is working.

COVID-19 vaccinations aren't being distributed at the same rate across Maricopa County's ZIP codes. According to the county's COVID-19 vaccine dashboard, some areas of Maricopa County have significantly lower vaccination rates than others. "We've disproportionately not vaccinated the places that need it the most," said Dr. Shad Marvasti with the University of Arizona College of Medicine in Phoenix.

The significant role and impact of structural racism needs to be considered in racial and ethnic health-disparities research, say the editors of the American Heart Association journal Circulation: Cardiovascular Quality and Outcomes. Khadijah K. Breathett, MD, assistant professor in the Division of Cardiology at the University of Arizona College of Medicine – Tucson and associate editor of the journal, co-authored the statement.

A University of Arizona Health Sciences study that is examining COVID-19 immunity and re-infection among frontline workers is expanding to include some Arizona college students while broadening its research focus to include COVID-19 vaccination effectiveness.

As a state site, it will eventually be able to operate 24/7 and serve up to 6,000 people per day.

The Arizona Rural EMS Advanced Telemedicine Demonstration Initiative gives rural EMS providers a real-time connection to emergency physicians.

Arizona Rural EMS Advanced Telemedicine Demonstration Initiative aims to improve patient outcomes by expanding EMS access to potentially lifesaving care.

The past two flu seasons were the worst the state has ever seen, but this season has seen a 93% decrease in the number of cases and is one of the lowest on record – all likely due to COVID-19. "It's a dominant organism in the community. When one virus becomes the dominant organism in the community, it doesn't let other viruses take hold and gain a foothold," said Dr. Shad Marvasti, director of public health, prevention and health promotion at the University of Arizona College of Medicine – Phoenix.