All Sauce from Weekly Sauce:

A “Third Thumb” — a robotic, prosthetic extra thumb — is easy to use and can help folks grab and tote more objects, a new study says. Hundreds of diverse test subjects at a science exhibition were able to figure out the extra thumb quickly and use it to pick up things like pegs and…  read on >  read on >

The old joke holds that fatherhood causes a man’s hair to go prematurely gray. Whether or not that’s true, being a father does appear to put men at greater risk of poor heart health later in life, a new study finds. Dads tended to have worse heart health than men without kids, based on factors…  read on >  read on >

Folks typically think of heart disease as a byproduct of modern fast-food living, but a new study shows the condition has plagued humanity for centuries. More than a third (37%) of 237 adult mummies from seven different cultures spanning more than 4,000 years had evidence of clogged arteries, CT scans revealed. Researchers say the results…  read on >  read on >

U.S. girls are getting their periods at younger ages, a new study has found. Girls born between 2000 and 2005 started their periods at an average age of 11.9 years — a half year earlier than the average age of 12.5 years for girls born between 1950 and 1969, researchers reported May 29 in the…  read on >  read on >

Feeding kids peanuts early in childhood can drastically reduce their risk of developing a peanut allergy, a new clinical trial reports. Children regularly fed peanut products from infancy to age 5 had a 71% lower rate of peanut allergies by the time they reached their teen years, researchers reported May 28 in the journal NEJM…  read on >  read on >

Near-infrared light pulsing into a person’s skull appears to boost healing in patients with a severe concussion, a new study finds. Patients who wore a helmet emitting near-infrared light displayed a greater change in connectivity between seven different pairs of brain regions, researchers report. “The skull is quite transparent to near-infrared light,” explained co-lead researcher…  read on >  read on >

Children exposed to traffic and other noise in their neighborhoods may be at higher risk for anxiety, researchers conclude, while air pollution could raise risks for other mental health woes. “Childhood and adolescent noise pollution exposure could increase anxiety by increasing stress and disrupting sleep,” wrote a team led by Joanne Newbury, of Bristol Medical…  read on >  read on >