Below is the graph of a quadratic function, showing where the function is increasing and decreasing. If we draw in the tangents to the curve, you will notice that if the gradient of the tangent is ...

(HealthDay)—Enhancing physical activity level and function can decrease the fear of falling among elderly patients, according to a study published online Aug. 9 in the Journal of Clinical Nursing.

In the analysis of 16,769 community-dwelling individuals without atrial fibrillation, there was a step-wise increase in the risk of incident atrial fibrillation with decreasing kidney function.