Why is there a growing concern over the physical fitness of children and adolescents?
a.
children and adolescents are overly concerned with exercise and fitness.
b.
a combination of poor nutrition and a sedentary lifestyle are leading to greater occurrences of obesity in children and adolescents.
c.
children and adolescents are getting too much of the wrong kind of exercise.
d.
although the diets of children and adolescents have improved over the years, participation in exercise has decreased .

An 80-year-old woman comes to the urgent care clinic with dyspnoea on exertion. on physical examination, her blood pressure is 100/70, and her pulse is 75. she has no pulsus paradoxus. her jugular veins are distended, and she has distant heart sounds. in addition, she has extra third and fourth heart sounds. her liver is enlarged, and she has pedal oedema. she has occasional premature ventricular contractions on her electrocardiogram. a chest x-ray reveals clear lung fields with a dilated cardiac silhouette. her echocardiogram reveals ventricular walls with a "speckled pattern". which of the following is the most likely diagnosis? - alcoholic cardiomyopathy- amyloidosis- haemochromatosis- tuberculosis- viral myocarditis