There is an old saying that worry is often the cause of illness. The various diseases that you suffer from might have been caused by too much worrying. How you deals with your state of mind is responsible for any illness that visits your body. If you want to spend your time whining about a friend that did this or that, suit yourself. Before you know it you will be wrinkled down by worrying, carrying loads that are too heavy for you.
This is the reason laughter is a medicine for the heart soul and mind. If you can have bouts of laughter from a friend relative or a situation then just do it. Whenever you engage your mind to active thoughts and actions, you can actually stay young as long as you live.