These are the signs and symptoms one has look out whenever a person has increasing alcohol dependence: feeling the need to drink after waking up, having a compulsive feeling of drinking but not being able to resist once it started, sweating and nausea that stops after drinking.
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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.
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A fertilized egg implants into the uterus