I know a person who is now a successful educator, but she initially
made her choice to attend graduate school in the life sciences because
the lab
environment where she did undergraduate research was a lot of fun. Once
she
went on to graduate school, she never found the same type of environment
again,
and the nature of the actual work turned out not to be a good fit for
her. She
completed graduate school but then felt the need to explore other
careers
during her postdoc. It took several years to rebuild her career, and now
she's
very happy, but it probably would have been best if she had more
carefully considered
her reasons for attending graduate school to begin with. So when you are
in
your internships or other opportunities, make sure you objectively
evaluate how
well you enjoy the actual work, not just the people around you.