Johnny is planning on visiting his grandmother for the weekend. The week before his planned trip he hears on the news that the major interstate that he uses to drive to his grandma's is going to be shut down over the weekend for construction. Rather than mapping out a new route, Johnny cancels his trip altogether. Johnny's inability to find an alternative route to his grandma's house illustrates what obstacle to problem-solving

Unnecessary Constraint

Explanation:

Problem-solving has several meanings in different contexts. But basically, it implies using available and useful avenues to solve problems.

For one to solve to a problem, several barriers/obstacles could present themselves. They include; Confirmation bias, Functional fixedness, Mental set, Unnecessary constraints, and Irrelevant information.

In the question above, Johnny is faced with Unnecessary constraints. This barrier makes people fixated on only one line of reasoning which they might have been experiencing success with before. It hinders creativity and thinking outside the box. This is what prevents Johnny from mapping out a new route.

to prevent people from getting the ebola virus, countries around the world paid to doctors develop a new vaccine. now that the vaccine has been made, doctors will need to experiment on a large number of people to find out if it works safely.

what is the greatest limitation that scientists are dealing with as they try to figure out how to experiment with the ebola vaccine?

meditation is a practice of sitting still and quiet for minutes or even hours. it has been practiced for thousands of years and is even a part of religious practices for some people. carefully controlled, repeated measurements of brain activity have shown that meditation does increase certain chemicals in the brain and even grows the part of the brain that people connect with their current surroundings and activities.

are claims about the effects of meditation most likely scientific or pseudoscientific?

not pseudoscientific, because people have made claims about it but scientific observations have not been made

a problem could be dealing witj emotional stress..all of these factors contribute to emotional stress.