Many psychological studies have demonstrated the value of doing a task or job that requires a great deal of effort and determination.  In fact, lack of challenge in your daily activities can impact your quality of life. 

Challenging activities can provide the underlying reason to act and are a real motivating factor.  The basic desire to do stuff, take actions of some sort to achieve objectives, is a basic part of human nature.

Satisfying Outcomes

Usually, the things we undertake have a purpose.  Achieving this outcome provides satisfaction of achievement but the difficulty of being successful is a key contributing factor to the level of pleasure derived from the achievement. 

Simply put, successfully completing a challenging activity is more satisfying than one that is relatively easy.  Our personal development and growth is related to the levels of difficulty. 

Throughout our lives we have desires and we undertake actions to attain these goals, but just achieving the goal is not the only measure of success.  We do not feel as satisfied or even satisfied at all if the achievement required no effort on our part.   

Making Changes

Sometimes when we are not challenged by the things we do, it is easy to fall in the trap of just carrying on.  The effort of effecting a change is not perceived as fundamentally required to increase our personal happiness. 

The lethargy and overall feeling of boredom become acceptable.  Over time this has a negative impact on our health and if we don’t snap out of it and make a change the impact on our overall health can be quite detrimental.