Connection or connectivity is one of the main reasons that enable one to develop interests in oneself. Detachments from society, family, friends, and community stop a person to think and rethink. You lack interest in doing anything, there is no excitement. When you no longer feel to push yourself and start rebuilding a life. Such suspiciously does not allow encouraging achieving anything in life.
Somehow the life goes on but there is no flow of energy. You want to achieve a goal but without any interest will not allow gaining anything in life.
Staying enthusiastic and ongoing in life needs some reason or goals. Determining a goal then working on enthusiastically often stops at one point for many. Consistent increase in interest and achieving is limited to few people. Why does this happen? Lack of interest forces a person to leave their task and stay disappointed throughout. They are not able to accomplish in life.
Firstly learn why are you losing interest?
Focus and concentration are the two main things that keep the interests of a person alive. But once you start losing the focus it will slowly end up losing interest. Enthusiasm does not grow when you are alone often being in a group or with friends helps in developing focus. It will enable you to get back on track. But being alone often makes it difficult for you to focus due to a lack of enthusiasm unless you are an expert in any field.
Dropping interests are due to the absence of knowledge and focus. Unless you get better guidance there is a drop in confidence leading to a lack of interest. It is also one of the reasons that people stop trying and give up in the middle. Believing that the work or job is not for you. Staying in a group or family will hardly allow the confidence to drop and help in developing it strong with support.
Often coming out of the comfort zone and exploring the new becomes difficult for many. They start growing uncomfortable losing interest fearing the obstacles ahead.
Is it a disease when you lack interest?
No, always losing interest is not a sign of disease. It is the situation that often discourages a person to step back into life. But for those who have severe problems in focusing and losing interest fast may suffer from a disease known as Anhedonia. You lack interest due to proper supply of sources, it can be books, experiments, or other related factors. Focusing becomes difficult, here you have to manage to find and learn. It is only possible for enthusiastic people.
Few people withdraw from socializing to focus and concentrate. It is a requirement as part of their job and studies. But they are do not avoid socializing with friends or families. A person suffering from Anhedonia will always isolate from socializing and always lack the tendency to connect to people.
Reduced emotional touches and negative thoughts about themselves are common problems. It is not a mental disorder so do not confuse it.
So, if you lack interest in your work that resist achieving your goal. It is necessary to open yourself to different aspects to develop confidence and focus.