The layer that encloses and protects the heart is
Pericardium
Answer:he should sleep 8 hours minimum and sleeping with the lights on it just makes you it hurts you
Explanation: really it hurts you
<span>In this situation, the physician gave Andrew a positively-frame message. Here, the physician's message was structured in terms of what Andrew could do - such as controlling his diet - rather than factors out of his control - such as his genetics.</span>