Mary Catchpole, 19, suffers from inherited activated PI3-Kinase delta syndrome (APDS), a life-threatening condition.

Objective To develop and test a new single-item physical activity screening tool, suitable for assessing respondents' eligibility for behaviour change interventions. Design Two single-item assessment ...

Exercise can temporarily increase blood pressure or lower it slightly. Learn more about when to talk to your doctor, blood pressure readings, and safety tips.