What are the physical changes needed in the body that would need to happen in order for our bodies to live forever. Changes such as telomerase activity, collagen flexibility, environmental changes, role of the immune system, DNA repair enzymes: these all come into play.

Construct a brief list (not to exceed 100 carefully chosen words altogether) that will answer the above question. Number the (3) sentences (changes) so that they take the form of a list, not a paragraph.