Cronkite News has partnered with ABC15 Arizona to expand the station’s Health Insider series, which provides expert advice and insights into health topics. Cronkite News is experimenting with storytelling tools and techniques to help explain the issues. Let us know what you think and email [email protected].

What makes the delta variant different, and dangerous

PHOENIX – After a brief period of decline, COVID-19 cases are back on the rise in the United States and experts say the delta variant is to blame. It has been called delta the “fastest and the fittest” of variants for its high transmissibility and rapid spread.

FDA approves new Alzheimer’s drug; health officials have concerns

For the first time since 2003, the Federal Drug Administration has approved a new treatment for Alzheimer’s disease, a progressive brain disorder. But with limited clinical trials and a hefty price tag, officials are skeptical about Aduhelm.

A PSA on SPF: Tips on getting the most protection from sunscreen

PHOENIX – Arizonans are at a particular risk for skin damage by the sun, wearing sunscreen prevents exposure to harmful UV rays and sunburns.

What are the signs of heat-related illnesses?

According to the Arizona Department of Health Services, nearly 3,000 people go to the emergency room every year due to heat-related illnesses, such as heat stroke and heat exhaustion. Here's how to know when you're experiencing what, and the best ways to avoid them.

With the country reopening while COVID’s still out there, how safe is it to fly?

PHOENIX – As more Americans get vaccinated, travel is picking up for the first time since the COVID-19 pandemic began in 2020. But does your dose really make it OK to fly commercially? Experts say it’s safer than you might think.

What is ‘brain fog,’ and why are COVID-19 long-haulers more susceptible?

PHOENIX – The National Institutes of Health is working to answer such questions as why do some COVID-19 patients experience more severe symptoms, and why some survivors experience "brain fog."

Can’t smell because of COVID-19? Retraining your nose might work, experts say

PHOENIX – Nearly 75% of COVID-19 patients experienced some loss of smell, but most got it back within a few weeks. For those still suffering, treatments to retrain the nose show promise.

What’s the risk of another COVID-19 surge?

PHOENIX – As some countries begin to ease COVID-19 restrictions, what’s the risk of an additional, and deadlier, surge? Experts say variants and varying vaccination rates will determine the chances around the globe.