Which is a common sign of a "midlife crisis? " gradually losing physical and mental functions displaying abnormal behaviors, memory loss, and personality changes comparing dreams of young adulthood with actual accomplishments watching grandchildren and great-grandchildren grow up

Comparing dreams of young adulthood with actual accomplishments.

Explanation:

It is a completely normal event in a life of an adult person.

It's a transition from young people, to older adults.

Person in this period is often found wondering and evaluating what they did wrong or right. They question their achievements, dreams, goals, and if they had done everything they've wanted and imagined.

Both men and women experience this condition, and symptoms and ways how they deal with it vary from person to person.

When it comes to men, they want to prove themselves to others, by buying a fancy car or doing things they've never done, while women are more focused on they appearance, they change their hair, they do plastic surgeries, change their style etc.

People who are dedicated to their goals and dreams their whole life are less likely to have midlife crisis.

While people who live mechanically, day by day, wake up one day and realize they haven't done all the things they wanted to do.