Answer:
Action: Setting a good sleep schedule and making sure you get the right amount of sleep every night.
Barrier(s): insomnia, excessive homework/other activities, people who wake you up, etc.
The features that we find beautiful are actually features that show fertility. for example, larger breasts and wider hips are good for child birth and care. Evolutionarily we are attracted to these features because subconsciously we know that these "beautiful" people will be best at producing and taking care of our children. Therefore, we will more likely keep the human race at the best it can be