All Sauce from Weekly Sauce:

Pfizer’s modified COVID-19 vaccine for use in children under 5 was 73% effective in shielding them from infection during the Omicron surge this spring, company data released Tuesday shows. The specially formulated doses for America’s youngest children were approved for distribution in June, although the American Academy of Pediatrics says uptake has been low. Just…  read on >  read on >

The health risks of losing sleep are well known, ranging from heart disease to depression, but who knew that too little sleep can also make you selfish? That’s the takeaway of new research from the University of California, Berkeley. “This new work demonstrates that a lack of sleep not only damages the health of an…  read on >  read on >

New research suggests that not getting enough sleep may doom adolescents and teens to obesity and poorer health as they enter adulthood. Those who slept less than eight hours a night were more likely to be overweight or obese than their peers who do get enough sleep, the study found. Those shorter sleepers were also…  read on >  read on >

Older adults who get a lot of “screen time” may have an increased risk of developing dementia — but a lot depends on what type of screen they use, a new study suggests. Researchers found that among older British adults, those who spent a lot of time watching TV were more likely to be diagnosed…  read on >  read on >

A person’s unrelated lookalike, commonly known as a doppelganger, may actually share genes that affect not only how they appear, but also their behavior. In a new study, scientists did DNA analysis on 32 sets of virtual twins — people with strong facial similarities — and found they possessed similar genetic variants. “Our study provides…  read on >  read on >

If you think hallucinogens like LSD are a thing of the past, think again. New research estimates that the use of mind-altering LSD rose from less than 1% in 2002 to 4% in 2019 among people aged 18 to 25. And, overall, 5.5 million Americans used some kind of hallucinogen in 2019. “According to our…  read on >  read on >