Many people live very stressful lives. They spend a lot of their time dealing with the things around them that have to be done. Some have more complex forms of stress, such as post-traumatic stress and anxiety. Others face challenges with other aspects of health that stress the body. All of this impacts the way the body functions. In some situations, it can impact the way your hair grows. If you have thinning hair or even a significant amount of hair loss, it could be due to the stress you are under.