Is young adulthood better characterized as a period of health-improving lifestyles or health-impairing lifestyles?

Is young adulthood better characterized as a period of health-improving lifestyles or health-impairing lifestyles? ... Young adulthood is a period of health-improving because this is an important time when peak physical performance is obtained between 19 and 26 years old.

there are no options provided but you can choose among the following gender-neutral pronouns: zir, hir, eir, vis, tem, eir.

in the normal course of maintaining a pronoun-antecedent agreement, we could have used the words his or her but since we are also required to use gender-neutral language, we need to replace it with its equivalent gender-neutral pronoun.

world war i had a devastating effect on german-americans and their cultural heritage. up until that point   german-americans, as a group, had been spared much of the discrimination, abuse, rejection, collective mistrust experienced by so many different racial and ethnic groups in the history of the united states. indeed, over the years, they had been viewed as a well integrated and esteemed part of american society. all of this change with the outbreak of war.