(mellow music) Let's explore the basic concepts of gender identity and gender expression. We will discuss the differences between sex and gender, the nuances of gender expression and gender stereotypes, various genders that you may encounter, and how to avoid misgendering and deadnaming. Is there a difference between a person's sex and a person's gender? Many people use these terms interchangeably. While they are connected, they are not synonymous. They mean two different things. Sex refers to the biological differences between us. This includes anatomy, hormones, and chromosomes. Biological sex is generally sorted into male and female. Gender, meanwhile, has many different aspects to it. Here is the definition of gender. Socially constructed characteristics of women and men, such as norms, roles, and relationships of and between groups of women and men. It varies from society to society and can be changed. Traditionally, gender was seen as based entirely on biological sex. This is known as gender assigned at birth. But, not everyone identifies with their originally assigned gender. These individuals are transgender and have a gender identity that is different from what is typically associated with their sex. The word transgender encompasses not only transgender men and women, but other genders as well. A study from the Williams Institute at UCLA found that an estimated .6% of adults in the US identify as transgender. That may seem like a small amount, but it's about 1.4 million adults. Some who identify as transgender may undergo medical procedures to change the outer perception of their gender identity, but not all do. Identifying as transgender is not dependent on physical appearance. A person whose gender identity is the same as their gender assigned at birth is cis gender. This term more or less encompasses anyone who is not transgender. A person's gender can be male, female, or something else entirely. There are many different genders a person can identify as. A person's gender can be influenced by socially constructed roles, activities, and how a person sees themselves. It can be a very personal way that we see ourselves and express ourselves. According to the American Academy of Pediatrics, we normally have a strong sense of our gender identity by the age of four. The US Transgender Survey found that 32% of transgender individuals began to feel their gender was different from the sex on their birth certificate at age five or younger. Some countries and states have started legally recognizing that there are more than two genders. For example, Germany allows people to identify as diverse, instead of male or female, on legal documents. In the United States, Oregon was the first state to offer a third option on licenses and identification cards, allowing individuals to choose X as their gender, instead of male or female.