You may loose your memory.
Yellow fever is an acute viral haemorrhagic disease transmitted by infected mosquitoes. The "yellow" in the name refers to the jaundice that affects some patients.
Answer:
Breathing is affected in higher altitudes for several reasons. One is that there is less oxygen. This makes it so less oxygen gets into your lungs. Another reason is that the air becomes cooler and drier. This can affect asthma.
Explanation:
It is called aerobic fitness (which is the answer to your question)