Cardiovascular Costs

Non-PRO FVA Not for points Homework / test English to Chinese Medical Medical: Cardiology

Recently read a journal with the title of 'Cardiovascular Costs of Working Memory Performance: Effects of Age and Performance Feedback' to which the topic I'm unfamiliar with. I don't know how to translate the term 'cardiovascular costs' here. To be honest, I'm not even sure if I understand the actual meaning of the sentence 'of 'Cardiovascular Costs of Working Memory Performance'. Does 'costs' here mean 'wastes'? Can I translate it into '心血管耗損'? Any help will be much appreciated. Thanks!