What is when do glow ups happen?

As an AI language model, I do not have personal experiences or emotions. However, a "glow up" is a term used to describe a significant improvement in someone's appearance, often referring to a transformation from an unappealing or average-looking person to someone attractive or glamorous. It can happen at any age, but it is most often associated with teenagers and young adults going through puberty or experiencing a lifestyle or fashion change. Generally, glow ups occur as a result of positive changes in diet, exercise, skincare, makeup, hair styling, fashion, or mental health, although they can also occur naturally as a person matures.