Syndrome X

When normal humans age, their strands of DNA become less potent as they are damaged or regenerated improperly. Depending on diet and exercise, these affects can be held at bay, but can never truly be halted. Thanks to your exposure, you no longer have to fear this eminent deadline. You can still be killed by physical trauma or diseases and poisons; your cells will make near perfect copies of themselves while replicating naturally, effectively causing your body to age one tenth the speed of normal human beings. You must still sleep, eat, and drink as usual, and significant physical trauma can still alter this expectancy.