A campus that banned smartphones made its students happier. Why? Because the phones are like any other addictive substance, says Anna Lembke, author of "Dopamine Nation": "Over time, our brains will adapt" and put us "in a dopamine deficit state...akin to a clinical depression or to an anxiety disorder. Now, we're using this substance not to feel good or get high but just to bring ourselves back up to baseline."
Many patients with weak immune systems don't realize their Covid-19 medicine isn't as effective as it used to be
Judy Salins considers herself a smart, empowered patient, but until this week, she had no idea that the medicine she takes to defend herself against Covid-19 isn't protecting her as well as it used to.
What parents should watch for with respiratory illness
Respiratory viruses including flu and RSV are circulating across the United States at high levels, overwhelming children's hospitals and prompting concern among parents of young children. Most kids who get sick this season will recover quickly with home care, but some will need medical attention. What should parents watch for, and how might they know it's time to call their pediatrician or go to the ER?
NASA inspects Artemis I rocket after Hurricane Nicole
The Artemis I moon rocket is still standing after battling Hurricane Nicole, which made landfall as a Category 1 storm roughly 70 miles south from the Kennedy Space Center in Florida overnight. The $4.1 billion rocket rode out the storm while sitting exposed on its launchpad.
RSV responsible for 1 in 50 child deaths under age 5, study estimates
A new study estimates that 1 in 50 deaths of otherwise healthy children under age 5 around the world is due to a common virus that's currently surging in the US: respiratory syncytial virus, or RSV. And in high-income countries, 1 in 56 babies who are born on time and are healthy will be hospitalized with RSV in the first year of life, according to the researchers' estimates.
One of nature's great mysteries may now have an answer, according to new 'fairy circle' study
For over 50 years, ecologists have studied and debated the mystery of the Namib Desert's "fairy circles," circular patches, mostly barren of grass, that have spread across 1,100 miles in the arid grasslands of Southern Africa.
More than 3 million middle and high school students reported using tobacco in 2022
More than 3 million US middle and high schoolers -- about 11% of those students -- reported current tobacco use in 2022, according to a new study from researchers at the US Food and Drug Administration and the US Centers for Disease Control and Prevention.
Electrolyte levels may help detect eating disorders a year earlier, new study shows
When it comes to eating disorders, early intervention and treatment can make a big difference — but they can be hard to identify. Electrolyte levels may help health care professionals screen for them a year earlier, a new study found.
Thanksgiving is two weeks away. Get your updated Covid-19 shot now, health officials warn
With Thanksgiving just two weeks away, people who are eligible for an updated Covid-19 vaccine booster but still haven't received the shot will need to roll up their sleeves Thursday to get as much protection as possible before the holiday.
"I find this fascinating, this neural link between generosity and happiness," Dr. Sanjay Gupta said while explaining to the hosts of "CNN This Morning" why doing good really does feel good. Recent studies show that helping friends and family, as well as strangers, can change the brain for the better.
Keeping your blood pressure below this number reduces risk of severe Covid
High blood pressure is a known risk factor for a bout of Covid-19 severe enough to raise the specter of hospitalization and death. In fact, research has shown having high blood pressure doubles the risk of having a severe case of Covid, even if you are fully vaccinated and boosted.