An inhabitant of Varanasi goes to Rohtang and experiences nausea, fatigue and heart palpitations. It is because

Options

A. he is experiencing altitude sickness
B. his RBC count is lower than required
C. he is in an area of flow atmospheric pressure
D. all of these

Answer

D

Explanation

When we go to high altitude place `(gt 3500 m)` we experience altitude sickness. Its symptoms include nausea, fatigue and heart palpitations. It is due to the low atmospheric pressure of high altitudes due to which body does not get enough oxygen. The body compensates low oxygen availability by increasing red blood cell production, decreasing the binding capacity of haemoglobin and by increasing breathing rate.