Pfizer is investing billions of dollars in treatments to prepare for a looming “heart failure pandemic.”The Covid mRNA vaccine maker is making a big investment in treatment for heart failure as cases of myocarditis and sudden cardiac deaths skyrocket.The pharmaceutical giant recently acquired several companies.This includes a major $6.7 billion cash acquisition of Arena Pharmaceuticals.Arena Pharmaceuticals is a firm specializing in developing treatments, particularly for heart inflammation conditions like myocarditis and pericarditis.Pfizer is now predicted to make tens of billions of dollars in profits from the spike in heart failure.The company is expecting to capitalize on the huge spike in...