Human Variation and Race Blog

1. When a human is at high altitude levels that means that the air pressure is low and there are strong winds with low humidity which means hydration can quickly occur. Air pressure is 30% lower than normal levels so the oxygen levels are a lot lower than usual, examples like being on top of a mountain would have lower air pressure due to the high altitude. When a human breathes at high altitude levels it is hard for the air to enter the vascular systems due to a process called hypoxia. High altitude levels can also lead to "high altitude sickness" which have common symptoms like vomiting,  headache, distorted vision, loss of appetite, fatigue and other symptoms like these. There are many life threatening things that can be cause from high altitude sickness including, heart failure, liquid around the brain starting to develop, phenomia like symptoms and many more life threatening cases. 2. (a) heat: heat is generally helped to adjust to when sweating alot. The more you sweat the more you stay hydrated. In recent studies it shows that men tend to sweat a lot more and much faster than women do. Women can achieve sweating easily by exercising. It is also true that "sports drinks" are meant to help in hot climate situation such as ones that are uncontrollable. (b) high levels of solar radiation: ultraviolet radiation from the sun helps contribute the tan skin during the summer time. The sun is giving off heat waves in which cause the skin to become darker during the summer time. (c) cold: A helpful way for helping with the cold is insulating clothing, houses and fires. One way that people seem to believe is quite helpful is through drinking alcohol in which it warms up your body. Although alcohol is only a temporary warmer and clothing is a long term warmer. Some cultures also sleep together (families) in order to keep there body heat together and keep warm instead of loosing more body heat sleeping alone. (d) high altitude: Indians from Bolivia and Peru have been able to remain at high altitude levels by producing more hemoglobin as well as increasing there lung capability. One thing they came up with was to create faster in order to get more oxygen as well as having broader arteries and capillaries. This allows for more oxygen to be able to get to there muscles a lot faster. 3. Learning of these human variations that have been discovered over the years has given us a huge advantage to the human race. Humans can be very limited to the things we do if none of these things were discovered. Without certain discoveries like these humans would not survive in the winter or summer and especially not when going to higher altitudes. Any information like these ones can be useful to us because the more we learn about situations we may have to overcome the more likely we are going to survive them. One way this information can be extremely useful is when going to the snow or just being in the winter time. Not many people now how easy it is to get one of the explained sicknesses and the examples on how to fix them are quite easy to follow. 4. A lot of the adaptations described are from different races reasoning why we were able to discover them. Certain races were from different times, different climates, and whole different worlds and they had to be able to find a way to survive in the climates they were in. Human races can easily be described y the human variations because it explains what they had to go through in order to survive as humans. Every human is different, yes, but most humans had to go through something may it be similar or not similar in their lives that deals with adapting to something in order to survive. 

cid:89638059-F02B-449D-99F1-EB96B318017D high altitude levels cid:CF7F7335-BE81-4613-BD7D-9F9835977B85 cold cid:C904AE9F-15CE-4354-8943-D5A8FC015301 heat cid:E2AEEDAF-6990-40EF-8291-953E6021694B solar radiation