After space travel, will the human body’s genetic genes change?

Even if you don’t go to outer space or receive strong radiation,

the human body’s genes are mutating all the time.

The reason why we don’t feel much about it

is because it is difficult for individual cell mutations to be reflected in our specific behavioral characteristics and appearance.

And the mutation process must be screened by the environment.

Most mutations will be eliminated by the environment very early in the early stage.

Small parts are gradually developed and retained based on time and environment.

This part is what we call evolution.

So after space travel, your genes will definitely change.

Is it a problem if they are just preserved?