The simple answer is oxygen starvation. The best athletes train at the higher altitudes because that is where the air is thinner. This forces the human body to work harder, just to expend equivalent energy. People that climb Mt. Everest often suffer from 'altitude sickness' due their lack of conditioning.
Athletes need a good supply of oxygen in their blood systems to perform at their highest potential. The more oxygen in the blood stream, the more oxygen is available to be transferred to each cells' mitochondria. The mitochondria produces the energy that a cell needs to perform at its best. So, the more oxygen there is in the blood, the better an athlete will perform. This is why athletes train at high altitudes without much oxygen - so their bodies produce more naturally. Then, when they compete at lower altitudes, their bodies have extra oxygen and thus, they are able to perform better.
everyone can be an athlete you just have to try and practise
Athletes need a good supply of oxygen in their blood systems to perform at their highest potential. The more oxygen in the blood stream, the more oxygen is available to be transferred to each cells' mitochondria. The mitochondria produces the energy that a cell needs to perform at its best. So, the more oxygen there is in the blood, the better an athlete will perform. This is why athletes train at high altitudes without much oxygen - so their bodies produce more naturally. Then, when they compete at lower altitudes, their bodies have extra oxygen and thus, they are able to perform better. by hemat
An athlete training at a high altitude will perform better than one who trains at a low altitude because of increased lung capacity. At a higher altitude there is less oxygen, so an athlete that trains at a higher altitude will use air more efficiently.
2622
steroids
Athletes need more sleep so they can be less tired when they need to perform.
naked
The word is "compete" not "perform" and the next time is in London, England in the summer of 2012.
By themselves
no, but windows does perform autosave at times.
the athletes need nutrition in the body to make them perform faster or greater because the nutrition gives them more energy.