If you want to build healthier habits in 2026, here’s my advice: Give yourself time. New routines don’t stick overnight. A classic study found that it takes on average 66 days of practicing a new dietary or physical behavior each day before it becomes a habit. You need to make it easy to make it last. So choose one habit and list every barrier that will keep you from hitting the mark. Then pre-solve each one. Is it too cold to go for a jog early in the morning? Find a 30-minute cardio routine on

From Santa’s reindeer and the Hanukkah armadillo to some very festive sea worms, our changing world is changing life for creatures great and small.

The hydrogen cloud is a remnant of the universe's early formation, NASA said in a news release.