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 ...

As we age, our lung capacity and function decrease. Read on to learn how to increase lung capacity with these easy breathing exercises.

(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.