This column (and a few to follow) are about bedsores, an often-mediated topic. In this first part, I’ll offer some brief background.Unsurprisingly, as the body ages, the largest organ, the skin, becomes susceptible to damage. Care of the skin becomes challenging. Pressure or decubitus ulcers occur in health-care settings. HAPUs — short for hospital-acquired pressure ulcers — are frequent grounds for …