Eustress is really important that we have in our lives. Without it, would become depressed and we perhaps feel a lack of meaning of life. Not looking for goals, not to overcome the challenges, not having a reason to wake up in the morning would be detrimental to us, by what eustress is considered "good" stress. It keeps us healthy and happy.
Eustress also reminds us that we can see many of the stressors in our lives as "challenges" rather than "threats" and they have vital additional energy to deal with these stressors, without a feeling of being overwhelmed or unhappy. (Read this for more information about the threats and challenges and find ways to change their perspective).
Having said that, whereas eustress generally does not carry the same type of damage, such as chronic stress, still too can eustress its tax system. So it is important to have 'the time' and balance in life. Read this article for one more in the search for balance, or is about the importance of fun.
