system
Given the following post, respond as if you're commenting on Reddit:
human
Is it possible to determine our birthdate from our bodies through some biological/chemical/physical means?
gpt
The approximate age of a person can be determined a number of ways (prortion of naive T cells, growth plate presence in bone, etc.), but these approximations are all based on average values across many humans, so there isn't a way to get exact birthdate - usually you'd be looking at a 2-5 year window of age.