(HealthDay News) -- Here are the latest clinical trials, courtesy of ClinicalConnection.com:

Stress and Cognition

This study is evaluating age differences in the cognition of healthy older adults. You must be at least 65 to participate.

The research site is in Los Angeles, Calif.

More information

Please see http://www.clinicalconnection.com/clinical_trials/condition/cognition.aspx.

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Constipation

This study will investigate the use of probiotics versus placebo in improving constipation.

The research site is in Houston, Texas.

More information

Please see http://www.clinicalconnection.com/clinical_trials/condition/constipation.aspx.

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High Blood Pressure

This study of high blood pressure will last 16 to 18 weeks and consist of 10 to 13 clinic visits.

The research site is in Tempe, Ariz.

More information

Please see http://www.clinicalconnection.com/clinical_trials/condition/hypertension.aspx.

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