Answer:
Margaret Chan,
Vikram Patel
Francis S. Collins
Arunachalam Muruganantham
Tom Frieden
Answer:
It depends. If cheering up impedes our personal progress, than we should seek to improve first. But cheering up can be helpful at times when depression impedes progress/normal functioning. It is generally healthier to be cheerful than to be gloomy and depressed.
Explanation:
Answer: In order to compensate for the low partial pressure of oxygen at altitude, the human body undergoes a number of physiological changes. A vital component in this process is the increase in the concentration of circulating haemoglobin. The role of HIF‐1α, erythropoietin and red blood cells in this acclimatisation process is described, together with the fall in plasma volume that increases the concentration of haemoglobin in the early stages of hypoxic exposure.
Explanation:
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