A life outside work.

As a startup / business owner you spend most of your time working on building the product and getting business off the ground. Their are a million things to handle and time always seems less.
As a result you start throwing long hours to the problems.
The product, business becomes the single point focus of your life for many years.

The time we have is limited. If we spend more at one activity we compromise at something else.

Hence slowly our social lives start taking back seat.

Creativity and freshness comes from fields / activities other than our own. We become blinded by our own day to day activities. Their are little fresh and new ideas. Things take longer to be done. And we end up plain tired and drained. 
And when you are spending all your time in a single activity you loose track of time and it just passes away without much getting done.

Solution ?

Have a life outside work.