(or 2!) Dying of old age, can you actually DIE because of the body being worn out, or is it always a disease or such? I read that if we cure every disease, we would live hundreds of years.

Question

Title! I don’t get it. Isn’t my finger getting worn from just being used for too long? Or will it eventually get worse because of something else?

In: Biology

Answer 1

Being alive means everything in your body has to stay really well organized and coordinated. It’s the nature of things (see also: Second Law of Thermodynamics) that everything eventually becomes disorganized.