It actually arises out of a number of things. There's the assisted suicide for terminally ill issue, there's those who say 'God gave man the brains to make medicines so we should take them' arguments, there's someone I know who isn't taking meds on the basis of shortening their stay here, there's others who think we should prolong our lives thru meds for as long as we can... I was just wondering if there was a defining line we could identify as to the whole meds vs lifespan issue.
The ability to lengthen one's lifespan is not a determining factor for whether a person is committing suicide, even if omission is considered. There are a lot of things we could do to lengthen our life span, that we don't do. Like eating healthy, for example. One could lengthen their life span quite a bit by a healthy diet. The fact that a person doesn't eat the healthiest diet in the world doesn't mean they are committing suicide, slowly. Sure they might have a moral obligation to eat healthy for the sake of others(family, friends, ministry) but one cannot say it is suicide. It is just letting things run its course, we all are going to die. Just some people do things to delay the inevitable.
Does delaying the inevitable stand as a morally right thing to do? Sure, we can continue to do things for the Lord and family. Our presence is desired. However, to not take medicines that could further your life is not suicide, in some cases its mercy. They are ready to go. The jump from increased life span to not increasing your life span is suicide is quite drastic.
Sure, we ought to have a long life, and its wonderful. However the choice to not live and to go be with the Lord is ultimately up to the Lord and yourself, by the decisions you make. Its a matter of edification, even more so towards those that will no longer be touched by your ministry and walk. They are allowed to make that decision, its their own body. Can it be selfish? Yes. Thats why Paul argued with himself whether he should go to be with the Lord or continue to preach the Gospel. He chose the latter. He stayed to preach. Though he desired to be with Jesus, he knew more work could be done, more souls reached.
Obviously loved ones want a person around forever, and they feel it is selfish of the individual not taking medicine to deny themselves a longer life. There are a lot of things to consider, is the person just done with life, ready to move on? Are they in pain and are crying out for mercy, wanting to be set free from agony? Are they guilt ridden and feel death is what they deserve? So many angles on this. However, to say the person who denies medicine is committing suicide is a stretch, they are just choosing to not delay the inevitable. Is it wrong? In certain cases, but in others it may be justified.
I think something else to consider is that medicine/pills are not always a cure, but simply alleviate the symptoms of disease. It is a symptom treating business, and instead of just dealing with symptoms people should get to the root cause. For Joe's heart, it may have been too high a protein/fat diet with too few carbs and veggies. So he needs a diet change. For people with heartburn, they dont need to get these pills that alleviate heartburn they need to stop eating the food that is offending their body causing the discomfort (high protein foods and acidity). Its about getting to the root cause and resolving it, and not treating the symptoms. Resolve the root and the symptoms will go.