A new study examining regional snow cover trends across the Northern Hemisphere found seasonal shifts in snow - and a lot less of it.

The authors used the Rutgers University Global Snow Lab Northern Hemisphere Weekly Snow Cover Extent Data Record to determine whether snow cover across the Northern Hemisphere is increasing or decreasing. Then their two-state Markov chain model with periodic dynamics was used to analyze snow cover and found that significantly more areas are losing snow cover than gaining it.

And the seasons were changing.


Central Park in New York City. Credit: Mary Pollitz

A cohort analysis of preschoolers in Canada has led the authors of the paper to call for bans on so-called "ultraprocessed" foods, charging that it will lead to long-term mental health and well-behaved children.

The gut bacterium Bacteroides fragilis has long presented researchers with a paradox. It has been associated with colorectal cancer, yet it also lives quite happily in most healthy people. A new study from a Danish research team offers a possible clue. When they looked beyond the bacterium itself and into its genome, they found a previously unknown virus embedded within it – one that was significantly more common in cancer patients.

For many people living with psoriasis, the red, scaly skin patches are only part of the story. Another challenge is the uncertainty about whether there is anything they can do themselves to help manage their skin.

Treatments have improved greatly in recent years. Creams, tablets and injectable medicines can all help control symptoms. Even so, many people still ask a straightforward question in clinic: is there anything I can do alongside my medication that might make a difference? Weight often comes up in that discussion. Psoriasis is more common in people who are overweight or living with obesity.

A new paper says that players where a few superstars get the money leads to less cooperation and poor team performance. The authors say this salary compression is why teams won fewer games.

The authors also suggest that companies should strive for more equity in pay, to increase synchronized effort. Because individual effort by key people isn't enough.

They may have a point. The U.S. Army pays everyone, good or bad, the same, and it is the best in the world. But current military and veterans will laugh if a humanities academic suggests it it more efficient or cooperative because of equal pay. Instead, they will tell the stories of all the people their unit had to carry, because it's not a meritocracy and reductions only happen at promotion tiers. 

In late January 2026, New York Magazine published a striking piece of cultural reporting: wellness clinics, influencer funnels, and WhatsApp “consultants” selling the dream of brighter skin, faster fat loss, and cleaner energy—often via compounds framed as “peptides,” sometimes as other “cellular” molecules bundled alongside them.

Glioblastoma, a deadly brain cancer, is treated with surgery to remove as much of the tumor as possible and then radiation and chemotherapy.

Like all cancer, that may not be the end of it. Sometimes, the aggressive cancer returns. A recent study sought to find out if high doses of vitamin B3 or niacin could help, by rejuvenating compromised immune cells to kill tumor cells, the way it had with mice. The researchers found that while glioblastoma suppresses the immune system, niacin in mice gave immune cells a boost so they could continue to attack and destroy cancer cells.