Sooner or later, the biological clock begins to run down. Cells that had faithfully renewed themselves begin to fail. A heart that pounded away in perfect synchrony begins to run down after a couple of billion beats. Skin that bloomed in the spring sunshine begins to weather and flake in life's autumn. Brains shrink, spines curve, eyes begin to fail, hearing goes, organs become cancerous, bones begin to crumble and memory perishes.
Scusa Macossay, vedo soltanto adesso il tuo messaggio, io lo tradurrei così nonostante in inglese sia più bello:
Prima o poi, l'orologio biologico comincia a correre verso il basso. Le cellule che si erano fedelmente rinnovate, cominciano a fallire. Un cuore che batteva via in perfetta sincronia comincia a correre giù dopo un paio di miliardi di battiti. La pelle che fiorì nel sole primaverile inizia a scaldarsi con le intemperie autunnali della vita. I cervelli si restringono, le spine si curvano, gli occhi cominciano a venir meno, l'udito va, gli organi diventano cancerosi, le ossa cominciano a sgretolarsi e la memoria perisce.
This is what google translate says:
Sorry But Essay , I only see your message now, I would translate it though in English is more beautiful: Sooner or later, the biological clock begins to run down. Cells that had been faithfully renewed began to fail. A heart whirling in perfect sync starts to run down after a couple of billions of beats. The skin that bloomed in the spring sunshine began to warm up with the autumn weather in life. The brains narrow, the thorns curl, the eyes begin to fall, the hearing goes, the organs become cancerous, the bones begin to crumble and memory perishes.
Because one thing our body needs to live is oxygen. The same chemical compound that is slowly setting fire to our cells. All the while, gravity destroys the regenerative abilities. This leaves our bodies with lower celluar count. If accidents, tragedies, and illness hasnt gotten to you. Oxygenated bacteria will.
You could try putting into your favourite search engine 'why does oxygen destroy your body'. Or, in case that loads the question by the presumption, try just 'does oxygen destroy your body'.
Me, I'm putting in 'what are oxygenated bacteria' and still trying to figure that out. Did Fox mean aerobic bacteria perhaps? Or anaerobic bacteria??
Meanwhile I think my tongue is already dead... I try to repeat some of the longer Italian phrases at full speed... crash+burn. :(
Organisms grow old because nature doesn't need them any more. If the purpose of life is to procreate and replicate successfully - this is the logic of the so-called selfish gene theory - then it helps to stay healthy long enough to generate children and provide them with food. Immortality arrives with your offspring, and is only guaranteed when all your children also have children.
Exactly hahah they both translate the same thing and that's because many past participles, used in Italian to make a compound verb (passato prossimo, trapassato prossimo, trapassato remoto etc..), are also used as adjectives. So "morti" for "why did we die" is a past participle, while for "why are we dead" is the adjective. Hope I've been clear ^^
I guess you could divide the reasons for aging and finally dying to the following seven:
1. Cell loss and cell atrophy
2. Nuclear mutations
3. Mitochondrial mutations
4. Death-resistant cells
5. Extracellular crosslinks
6. Extracellular aggregates
7. Intracellular aggregates
(Not including accidents, murders and the like.)
Solve the above, and we'll live virtually forever.
One answer to that is that during replication the ends of the DNA are cut down by certain enzymes, meaning the loss of crucial information. Supressing that might lead to cancer but cancer cells are immortal so... Why do we die? Because our cells die and because the other choice would be cancer. Thanks for being at my TEDtalk Duolingo Edition