Yes, anesthesioogy is definitely a "lifestyle" type of choice for doctors. (Obviously, there are anesthesiologists who work long hours). It's also oversubscribed among graduating female physicians.
One reason why my field, Cardiology, has so few women is the radiation exposure. We get tons of radiation during procedures and we wear lead aprons to protect us. However, as I went through my two pregnancies wearing 20 pounds of lead, that is when it dawned on me why many female med students don't go into a field like that.