内容摘要：Most Americans will never buy a tractor, but Babak Hafezi, who runs a global consulting firm and teaches international business at American University, says a price spike in such a big-ticket item vital to food production will spill down to all sorts of other items.

Most Americans will never buy a tractor, but Babak Hafezi, who runs a global consulting firm and teaches international business at American University, says a price spike in such a big-ticket item vital to food production will spill down to all sorts of other items.

She tells herself: “I can do anything for this amount of time,” and the world will still be waiting for her at the end.It’s not enough to just have a hobby, Lustig said. It helps to choose hobbies that include deliberate practice and a goal to strive toward, whether it’s playing guitar for an audience or improving in a sport.

It helps to pick something that you enjoy as well.“You don’t want to start with the heavy nonfiction or like ‘War and Peace,’” Lustig said. “If you need to start with the romance novel, then start with the romance novel. You can work your way up.”It’s also important to be kind to yourself. Everyone has good and bad days, and attention needs are different — and even vary from task to task.

The key is to make an intentional effort, experts say.“It is in many ways similar to a muscle in the sense that we can build it up with practice and exercises,” Ziffra said. “Conversely, it can weaken if we’re not exercising it.”

The Associated Press Health and Science Department receives support from the Howard Hughes Medical Institute’s Science and Educational Media Group and the Robert Wood Johnson Foundation. The AP is solely responsible for all content.

BELLINGHAM, Wash. (AP) — There was a buzz in the air Friday in northwestern Washington state as about 250 million honeybees escaped a commercial truck that overturned., then dig underground to get to the roots of a tree.

Cicadas are strange in that they feed on the tree’s xylem, which carry water and some nutrients. The pressure inside the xylem is lower than outside, but a pump in the cicada’s head allows the bug to get fluid that it otherwise wouldn’t be able to get out of the tree, said Carrie Deans, a University of Alabama Huntsville entomologist.The cicada gets so much fluid that it has a lot of liquid waste to get rid of. It does so thanks to a special muscle that creates a jet of urine that flows faster than in most any other animal, said Georgia Tech’s Bhamla.

In Macon, Georgia, T.J. Rauls was planting roses and holly this week when he came across a cicada while digging. A neighbor had already posted an image of an early-emerging critter.Rauls named his own bug “Bobby” and said he’s looking forward to more to come.