Note: As Mike Yassa, the lead author on the study, pointed out to me, the study did not actually test whether consuming caffeine before a task enhances memory, the problem being that other confounding factors can then lead to difference in performances on the test.
The US debt is more than $20.1 trillion, the largest in the world. Here are the 3 reasons it grew so large, and how it damages U.S. economic growth. The US debt is more than $20.1 trillion, the largest in the world.
Debt is as American as apple pie: The average household has $134,643 in debt. For households that carry credit card debt, it costs them about $1,300 a year in interest. Itâs time to take action. Debt is a way of life for Americans, with overall U.S. household debt increasing by 11% in the past decade.