"Anxious"people get a bad rap. But they are overdue for some real kudos. An "anxious" person is often a sensitive person. He or she can feel and sense things far before others. This can offer families and communities earlier opportunities at problem solving or addressing issues. Anxious people also perceive dangers around them. While they may step over the line with this, they also can warn others of real dangers they have fallen immune to, or move in to protect others before many see the dangers. In order to live in this world we need to lean on denial to keep going. If we acknowledge the risks around us all the time we will be immobilized. Similarly that denial helps us cope and ignore the distasteful, concerning, or even sometimes downright wrong we see or do. "Anxious" people often live peeking under that denial and are affected, even, disgusted with what they refuse to deny. Additionally, I know many people who will not watch the news. While others find it responsible to stay attuned to the world through the news, those skipping it are not desensitizing as quickly to things like violence and tragedy, and can often see reality with a clearer lens.
An anxious type with heightened sensitivity has no dulled senses, so the need to get the adreline running through a thrilling colossal ride or jumping from an airplane is not necessary. They can get that same jolt in daily life, from perceiving nature or an interaction with others.

So in our culture that prides itself in toughness and that can, at times,mock the sensitive, remember that it's these types of friends who may just be seeing a slice of life you are missing--or even better may just help you before you know you need it.