Why do a human have to die?

Question

Why? And why can a human die anytime in his/her life. How can a human die. How can a human live his/her life knowing that he/she going to die. How do a human live everyday.

Answer 1

That is several questions, actually.
Humans have to die because we are all biological organisms, and it is part of life, just as is birth.
The length of our lives MAY be determined by the Spirit of the Universe.
The length of our lives without fatal accidents or diseases is determined by the number of telomeres on the end of our DNA sequences. These make the DNA separate and reproduced itself so the cells may divide and grow. There is a limited number, thus the division and growth process of our cells can only happen a certain number of times.
To accept death as a normal part of life, and to understand ones own mortality, seems to come with age. Most people do not fully understand the fragility of life and their own mortality until the early 30's.
To dwell on death rather than life will create stress. Stress can shorten life. Some stress is necessary to stimulate life, but there are many stressors in our environment daily. Dwelling on death is akin to 'worry', which is basically a waste of time. Concentrate instead on the joys and happinesses of life, the beauty of our world, the warmth of relating to our fellow humans, and life will flow sweetly.

Answer 2

This sounds more like theology than biology, but I'll try to help you:

I have lost many people I love over the past several years. For a while, it has been very painful, especially when these are people I love so dearly. Most were due to "natural causes", but we lost two who were killed in a car accident. We also came very close to losing my cousin at the age of 17 due to a fall.

We don't really know how long God has planned for us to be here on Earth, or when it's our time to go. All we know is that we need to work as long as we're alive to make things right for ourselves and others in the time we're given.

I know it sounds silly, but I know someone who has been to a psychic. Although I don't believe everyone who calls themselves psychics are genuine, this person seems to know too much about things she shouldn't be able to understand. When my cousin died, we were unsure of the cause of death until she explained it to us. That was before the autopsy, and she was right. Then she starts describing people to us and tells us my cousin is with them. She KNEW things nobody could possibly know, like how my uncle was left in an orphanage when he was 3 years old, and how my great-grandmother stood. She also told us when and how my uncle would die, a year before we lost him. These people were waiting for my cousin when he passed away, and now I can rest assured that I might see him again some day.

While you're alive, you need to do and keep doing all the things you need to do. There is a wonderful point to living, mostly in the joy you can bring to others. You have so much you can offer the world, and so much work you need to do while you're able. Be grateful for what you've been given and share what you can with those less fortunate than you.

Answer 3

Humans have to die because they are living organisms and living organisms have expiration dates. Humans can die anytime in their life because a lot of their life decisions determine their time/cause of death or in some cases, other human's time/cause of death. Humans can die by natural causes, disease, accidents, their own will. Humans can live their own life knowing they are going to die because not many humans go around thinking "I'm going to die, I'm going to die" it's not in their conscious mind a lot of the time. Humans live everyday by eating, drinking, breathing, taking medication, having family, working. I don't think you really had to ask all of these questions, they're pretty obvious.

Answer 4

We grow old and die for a few reasons.

The first is that our cells continuously go through mitosis. After years and years of going through this process the cells start to have more and more flaws. Similar to you making a copy of a copy.

Second, receptors on the cells that allow the intake of nutrients fade over time and certain receptors will favor certain nutrients, while ignoring others that are needed.

Third, as we grow older we require more energy to sub-stain ourselves. At some point the energy needed is greater than we ever could take in.

Last, we are genetically programed to grow old and die. Scientists have found the gene and have deactivated it in worms and other short lived animals increasing their life span 8 to 9 times. That is like us living to 900.

Basically our cells need to have in order to survive oxygen, phosphate, calcium (C, H, N, O, P, S), nutritional substrates, and ATP. If any of these processes are ceased this will cause death. Without this the brain is unable to give our body information and our organ functions start to fail. This is why people can die any time.

Answer 5

Because within the late twenties to early thirties the human body can no longer provide enough energy to sustain itself and repair damage. You might call this entropy. Eventually without maintenance, problems compile and the body fails. Also trauma can create an early death. In addition, the body is susceptible to other problems ( heart disease, cancer, etc.) and genetically some are more so than others. Essentually the variables involved in the calculation of an individuals death are far to numerous to create a definitive death time and thus it wildly fluctuates due to lifestyles and genetics.

A "human" must accept the impermanence of all things and even seek comfort in it to live one's life and enjoy every minute of it.

Answer 6

It is an evitable thing that is going to happen. And although it may make us sad to lose the one we love we must carry on and continue to live the best possible life we can live because that is what they would want of us. To continue to laugh, and cry and love and hurt and bleed, because that is what living is all about. To live we must also die, but remember when one you love passes away they are never truly gone, for they live on the people hearts and minds and lives of those that they touched - even if it was just with a smile.

Answer 7

We're animals and a part of nature. All of nature exists in cycles and death is part of the life cycle. Also new matter cannot be created...the entire planet consists of the SAME matter since it was formed, it's just being recycled continuously. If nothing ever died, the world would be full of living things, but it would be barren and eventually we'd run out of space and food. It has nothing to do with a religion or god, it's simply how nature works. This is partly why recycling trash is so important to the long term well-being of our planet. Study science.

Answer 8

Haven't you seen the Lion King? It's the circle of life.
We are here to create new life and the old life goes away. Now...hopefully you will live to be a very old person before you die but we all go away eventually.

Answer 9

We die cause we are like everything else in this universe, we evetually wear out. Cells can only live thrive and repair only so many times. Everyone is unique though as to how long they live due to disease resistance and so forth. As to how we can go on living? Who cares how or when we die, its the journey not our destination that makes life and how we live it. We have it pretty good actually, fruit flies live for one day! :)

Answer 10

the simplest answer is, if we all kept living, there would not be room on the planet for all of us.
wondering about dying and what it will be like is something every single person thinks about, at various times through our lives. so, don't feel alone.
if you have a grandparent, or an older friend you trust, i suggest you talk with them about this. i think it's good that you're asking.

if you like to read, there's a book called "How We Die". i've read it 3 times, and it's really awesome