All Sauce from Weekly Sauce:

Why does your cat purr when you pet it — or meow when dinner’s late? A new study from the Wildlife Research Center at Kyoto University in Japan suggests the answer could be in its genes. Researchers looked at the androgen receptor gene in 280 spayed or neutered mixed-breed cats.  They compared the DNA to…  read on >  read on >

Attorneys general from four states are asking the U.S. Food and Drug Administration (FDA) to lift restrictions on mifepristone, a pill used in medication abortions. The request came Thursday from top officials in California, Massachusetts, New Jersey and New York. They said in a petition that the current rules make it too hard for doctors…  read on >  read on >

Immunotherapy combined with chemo can give people a fighting chance against stomach and esophageal cancers, a new clinical trial says. People treated with durvalumab and chemotherapy were much more likely to go into remission, according to clinical trial results published June 1 in  The New England Journal of Medicine. “This is a major step forward…  read on >  read on >

Teenagers who are night owls appear to be more self-destructively impulsive, a new study says. Teens who prefer to sleep and wake later are more impulsive than “early bird” teenagers, researchers are scheduled to report at the upcoming annual meeting of the American Academy of Sleep Medicine (AASM). However, this association doesn’t appear to be…  read on >  read on >

It’s not news that new mothers lose a lot of sleep in the weeks after giving birth. But a new study underscores just how much of a dent a new baby puts into a woman’s sleep patterns. In particular, a new mom’s ability to get uninterrupted sleep suffers for weeks after their new baby’s arrival,…  read on >  read on >

A repurposed diabetes drug can be an effective tool against fatty liver disease, a new clinical trial has found. Dapagliflozin helped people reduce fat levels in their liver and avoid liver scarring that comes with the condition, which doctors call metabolic dysfunction-associated steatohepatitis, or MASH, researchers reported June 4 in The BMJ. In fact, about…  read on >  read on >