It is not uncommon for individuals to have thinning hair. Many men and women will experience some hair loss or at least thinning throughout their lifetime. In some cases, the cause is something you can reverse, such as seeing your hair grow back after you stop a medication or treatment that causes you to lose it. Other times, we do not know what is behind that hair loss. However, there are a number of things that we do know can worsen hair loss. Take a look at a few of the mistakes you are making that could be causing or worsening your hair thinning right now.