The reasons for this increase include: (1) the mass fluoridation of water supplies in some countries, (2) the introduction of fluoride-based pesticides, (3) the use of mechanical deboning processes, and, perhaps, (4) the use of Teflon in certain production processes.ver the past 100 years, the levels of fluoride in foods purchased at the grocery store have increased.
1 The cause of altitude sickness is the decreasing amount of oxygen available as altitude increases. 2  Early symptoms of altitude sickness include. 3  headaches,  fatigue and.
The loss of sleep from altitude sickness can make you feel tired faster; however, your fatigue is mostly likely caused by reduced air pressure and lower oxygen concentration.ild altitude sickness is common; however, if your tiredness is accompanied by confusion, a loss of balance, breathing difficulties, chest tightness and pale or bluish skin, than descend immediately to a lower altitude and seek medical attention.