As European countries go into lockdown again amid a cold, dark winter, people will be spending even more time indoors. Small changes in your home can make you mentally healthier. People always reference nature when asked what their favorite visual scene is, according to Esther Sternberg, research director at the University of Arizona Andrew Weil Center for Integrative Medicine in Tucson, Arizona.

A Scottsdale man who was part of a COVID-19 vaccine trial describes what it was like and why people should get the vaccine. "These efficacy rates are great. They're phenomenal, actually. They're probably the best they could be," said Dr. Shad Marvasti, director of public health, prevention and health promotion with the University of Arizona College of Medicine – Phoenix.

Public health experts contacted by USA TODAY say high-profile state sports teams are not helping by evading local health orders to play sports. “They’re moving to a place that also has increasing cases and risks of exposure,” said Leila Barraza, associate professor at the Mel and Enid Zuckerman College of Public Health at the University of Arizona. “You’re going to interact with more people when you’re traveling. You’re safer at home.”

Drs. Paloma Beamer and Kacey Ernst of the College of Public Health helped inform an anxious public about air travel during a pandemic.

According to the University of Arizona Poison and Drug Information Center, seven people have died this year across Arizona from ingesting hand sanitizer. "Seven may sound small when compared to deaths from COVID-19 but seven is large when it should be zero," said Steve Dudley, director of the Center.

Experts say the rush for tests is now putting a strain on the country's already-flagging coronavirus response infrastructure. "No diagnostic test is 100%. Also, testing is one moment in time, so just because you tested negative on Wednesday doesn't mean you won't be positive on Thanksgiving," said Saskia Popescu, an infectious disease epidemiologist and adjunct professor at the University of Arizona Mel and Enid Zuckerman College of Public Health. "The problem is that testing feels like this very tangible thing that you can do, and I get it, but it's only one piece."

Nurses Mike and Missy Skaggs share their battle against pancreatic cancer after Mike was diagnosed with the disease at 47. Dr. Rachna Shroff, associate professor of medicine and chief of GI Medical Oncology at the University of Arizona Cancer Center, explains the disease is difficult to treat because there is no preventative screening to detect pancreatic cancer.

Top public health officials are taking their own advice about scaling down the holiday amid the COVID-19 pandemic. "My husband and I are bubbling with my parents, who live 90 miles away. We're being vigilant about quarantining for 14 days and then we’re all going to get tested in advance. We had to decide to (celebrate) with one set of in-laws, instead of both, so that was an awkward conversation. But we’ll probably celebrate Christmas with my husband’s family," said Saskia Popescu, an infectious disease epidemiologist and adjunct professor at the University of Arizona Mel and Enid Zuckerman College of Public Health.

Arizona CoVHORT is a multiyear study that will answer questions about risk factors for COVID-19 and how the virus impacts long-term health outcomes.

The CDC is advising people not to travel for Thanksgiving. However, some will still need to travel. Kacey Ernst, a professor in the University of Arizona College of Public Health and an infectious disease epidemiologist, provides advice on what to expect and how to protect yourself when traveling by plane.