A change on the horizon that will exacerbate current frictions is the growing importance of individualized health care. For most of modern history, relatively inexpensive public health precautions, such as providing clean drinking water and routine vaccinations, have been the main factor pushing up life expectancy.
个人化医疗是一新近的变化。这将会使得目前的摩擦加剧。对于大多数现代社会而言，相对便宜的公共医疗预防措施，例如提供清洁饮水和固定的疫苗是推进寿命预期的主要因素。公共医疗手段已经超过了个人化护理的重要性。