that someone lay down his life for his friends.
John 15:13 World English Bible
I would rather give up my life sacrificially than die from a disease or old age. What are we hanging onto our lives for when we cannot? Jesus said that if you seek to hold onto your life you will lose it, but if you lose it for His sake and for the gospel, you will "keep" it. I would rather keep it in the sense that Jesus is talking about, which is primarily, the life after death. Go for the gusto! Lose your life! (now that I have said this, I am going to go preach to myself!)