When the word death is uttered, there is one question that arises in everyone’s mind, that is, what was the age of the person? If the person was an old one, then that was his/her final destination. But if the person was not old enough for death to happen, then a further question arises about his health and treatment. Coming to the point of death, we can see according to human psychology, the word “age” matters the most. Now, what is age? How can you define age? Well, in bookish language age can be defined as a persistent decline in the age-specific fitness components of an organism due to internal physiological deterioration. To understand better, let us see what age means in a simplified language. Aging is a series of processes that include direct damage, accumulation of cellular waste, problems, and imperfect repairs as well as the responses to them. These processes result in the familiar signs of aging and ultimately
to the development of age-related diseases that eventually kill us.
In this article, we will focus on why we die? Why cannot we be immortal? What effect does age have on death? And solutions of many more questions will be discussed below So, let’s get started.
Why do we age?
This is a common question among people which can be justified with several answers. We know that for some people aging means growing up and for some it means to grow old. Finding a scientific answer is a challenge but the answer to why we age can be justified with what we can say that aging occurs when intrinsic processes and interactions with the environment like sunlight, and toxins in the air, water, and our diets cause changes in the structure and function of the body’s molecules and cells. Those changes in turn drive their decline and subsequently, the failure of the whole organism. The exact mechanism of aging is poorly understood. But scientists have found some traits that play an important role.
Firstly, as the years pass, our bodies accumulate genetic damage in the form of DNA lesions. These occur naturally as the body’s DNA replicates, but also in non-dividing cells. Secondly, cellular regeneration which is the main stuff of life declines as we age. With age, cells increasingly grow senescent too.
What is life?
Every living thing on this planet is made up of cells. A cell is a protein-based robot that is too small to feel or experience anything. In a single cell, every second several million chemical reactions take place forming a complex orchestra. But no part of the cell is alive, everything is dead matter moved by the laws of the universe. So, is life the aggregate of all these reaction processes that are taking place?
Eventually, every living thing will die. The goal of the whole process is to prevent this by producing new entities and this means DNA. Life is in a way, just a lot of stuff that carries genetic information around. Every living thing is subject to evolution, and the DNA that develops the best living thing around it will stay in the game. So, you might have a question as is DNA life then?
If you take DNA out of its hull, it is a very complex molecule, but it cannot do anything on its own. This is where viruses make everything complicated. Viruses trade their own life for the survival of their DNA. This means living things can evolve into dead things as long as they are beneficial to their genetic code. So, maybe life is the information that manages to ensure its continued existence.
Why do we die?
There are many myths that people believe as the reasons for our deaths and why we cannot be immortal. One of these myths is that our cells die to make space for the growing new cells. The truth behind this is that every individual is a vehicle for a collection of genes. These genes are selected to favor the survival of copies of themselves. Since parents and offspring use the same resources, the death of a parent creates room ecologically for just one offspring. Each gene in the parent has a 50% chance of appearing in this offspring. But it has a 100% chance of appearing in the parent because it’s already there. It’s never, then, in the evolutionary interests of a parent to die so an offspring can replace it.
The above answer is justified by science. But if religion is let to answer the same question, maybe the answer would somewhat be like recollecting memories from the Bible. The Christian religion has a valid answer that is mentioned in the Bible. It is believed that Adam and Eve were the first humans on our planet Earth and they had disobeyed God by eating fruits from the tree they were not supposed to eat from. Due to disobeying God, he had punished Adam and Eve with death, and being the descendants of Adam and Eve, we are also doomed to die someday.