If you’re looking to reduce your chances of developing lung disease, say experts at UC San Francisco, then it may be smart to avoid inhaling cannabis.

A new study in the Journal of General Internal Medicine found that inhaling marijuana every day is associated with a 44% increased chance of developing asthma. It also increased the odds of developing chronic obstructive pulmonary disease (COPD) by 27%.

The COPD risk may be understated, since the disease takes decades to develop, and the researchers did not have detailed information on how long people in the study had been using cannabis.

In defining the concept of inhaling, the researchers included smoking, vaping, and so-called “dabbing,” which involves breathing in the vapors of concentrated...

Compact phononic circuits guide sound at gigahertz frequencies for chip-scale devices

Phononic circuits are emerging devices that can ...

Rutgers researchers uncover “fingerprints” that show how these cosmic systems expand and evolve

A Rutgers-led team of scientists has uncovered evidence of how galaxies expand by tracing the invisible scaffolding of the universe created by a mysterious substance known as dark matter.

In a newly published study in Astrophysical Journal Letters, researchers used what they said are the largest-ever samples of special galaxies called Lyman-alpha emitters to study how galaxies clumped together over billions of years. In doing so, they gained an improved understanding of how galaxies relate to the surrounding dark matter and how they evolve over time.

“Analyzing these fingerprints gives us insight into the mass of dark matter surrounding the galaxies,” said Eric Gawiser, a Disti...

Researchers uncover a key protein and a promising strategy to prevent bone damage from steroids

The rheumatology and orthopedic researchers discovered that a protein called Basigin, which gets activated in stem cells when people take steroids, is a key reason why bones weaken and blood vessels in bone tissue become abnormal. By blocking Basigin, they were able to protect and even restore bone health in mice, suggesting a promising new treatment path.

Their findings were published in Nature Communications.

“This research is a major step forward in understanding how steroid treatments affect bone health,” said Thomas H. Ambrosi, assistant professor in the Department of Orthopedic Surgery and co-corresponding author of the study...