The results of the study suggest that cases of depression will continue to increase in the coming decades, as anxiety tends to predispose people to depression," says psychologist and study author Jean M. Twenge, Ph.D., of Case Western Reserve University. She adds that other testking 70-298 implications of the findings suggest that alcohol and drug abuse will continue to be an increasing problem too, because anxiety usually precedes the onset of substance testking 70-272 abuse. There are also implications for physical health. "Research has found that anxious people have a higher mortality rate, most likely because anxiety has been linked to higher occurrences of asthma, irritable testking 70-536 bowel syndrome, ulcers, inflammatory bowel disease and coronary heart disease," said Dr. Twenge.