In a study of the first year law students at the University of California at Los Angeles,
Psychologists discovered students with positive attitudes and expectations
had stronger immune systems and overall good health
Researchers drew blood from "declared optimists" and a control group.
They then measured levels of key immune cells at the beginning of the semester.
At that time, there was no difference, but "well into" the stress-filled semester,
the optimists showed significantly higher levels of key immune cells activity
than their less-than-positive counterparts.
So, Keep smiling -- You'll live longer!
