I believe the answer is: keeping her room cool
Being in high temperature environment usually increase the level of adrenaline and put your mood into anxiety.
Being in a cool room would bring your mood into a relaxed condition. This would help reducing the adrenaline level in our body, slow down your heart rate, and help you get into a deep sleep.
Self actualization is a concept from Humanistic psychological theory created by Abraham Maslow. It represents the growth of the individual to attain the highest needs. Self actualization then would involve seeking ways enhancing or achieving personal growth which is then the answer.
Answer
An acid-citrate-dextrose anticoagulant is used to preserve blood at 4 degrees Celsius. It preserves up to 3 weeks
Maybe give mee the full question so I could see
