Each game takes place on a different level associated with the specific challenge.

The moving average has been below the 400,000 mark, a level associated with weakness in the job market for seven weeks.

These help long-term memory and low levels are associated with depression.

High levels of inflation have also been associated with a growth in Iran's money supply.

Lowered levels are associated with both diabetes and heart disease.

High levels of stigma are also associated with social hostility.

Low levels of this chemical are associated with Parkinson's disease.

In study after study, educational level is associated with better health.

This higher level is associated with strong individual approaches to problem solving and creativity.

High levels of rheumatoid factor are associated with more severe disease.