Research from The State University of New York at Stony Brook suggests that having fun benefits your immune system for three days, the day of the fun and two days after that. Disease is based on the idea of stress causing illness or dis-ease. I often would sit in the sun as part of healing a cold. Friends are part of the wellness life style. If you will you can think of a myriad of reasons for bringing as much good into your life as possible. Not only is a life filled with goodness more enjoyable, it will be longer because of all the health benefits.
I once attended a lecture by a psychologist about ways to help your troubled life. He acknowledged that life could seem especially troubled at times. But he told his listeners that they could start on the way to healing that life by letting their mind imagine having five good minutes of freedom from stress. He said the person could then go on to finding ways to bringing those five good minutes into reality. He said that absence of the negative thoughts that were creating the stress was the start. If five minutes could be achieved then five more minutes could be achieved, later in the day. So find that spark of magic that will bring healthy goodness into your life. You deserve a life of goodness.