There are many different anxiety disorders, which can constantly corrupt someone's life and daily activities. It is a mental illness that consists of constant fear and worrying over many different things. People with Generalized Anxiety Disorder, or also called GAD, have persistant worrying over money, family, health, and other things in life too. It can also consist of excessive worrying, when there is no real reason for concern. When someone has three or more symptoms and worries for several days for about 6 months, they become diagnosed with GAD, which distinguishes it from worrying.
3.1% of the U.S. population is affected by this disorder, but there are treatments as well. There is no known cause of being affected by it, but stressful things in life such as experiences and family issues can play a role in it. People with this disorder find it hard to stop worrying, that it may affect their ability to carry on throughout the day. As mentioned in the youtube video, for these people who have the disorder, the stress is always there.