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.
Altitude Sickness is also known by the name of acute mountain sickness. At times, it also turns into High Altitude Pulmonary Edema (HAPE), which can be a life-threatening condition. The basic reason for the cause of altitude sickness is also the failure of acclimatisation of the human body beyond a certain elevation.