"Runner's face" is a term sometimes used to describe the appearance of a person's face after they've been running for a long period of time. Some people believe that running can cause the face to look gaunt, sunken, or wrinkled, due to the loss of fat and muscle mass in the face.
It's important to note, however, that there is no scientific evidence to support the idea that running causes the face to look a certain way. In fact, regular exercise, including running, can have many positive effects on a person's overall appearance and health, including improved skin health and a more youthful appearance.
It's also important to keep in mind that everyone's face changes as they age, and there are many factors that contribute to these changes, including genetics, lifestyle factors, and environmental factors. Running is just one of many factors that can impact a person's appearance, and it's not necessarily a cause of "runner's face."
If you're concerned about the effects of running on your appearance, it's best to talk to a doctor or a dermatologist who can give you personalized advice based on your individual needs and circumstances.
Michael McGovern, Crusader Committee Member, Chairman of Irish Milers Club