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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Before lifting weights, you should always stretch and warm up properly. If your muscles are tight, you are more prone to injury when you begin lifting weights.
It is good to drink water during a weight-lifting session, but you do not need to drink before lifting weights. It is also a good idea to eat about an hour before your workout and within half an hour afterwards.
I hope this helps you! Have a great day!
A. Lungs because thats your respiratory system
Answer:
because they partly copy the original ones thereby using substandard things to make them look like the originals
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