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.
Acute mountain sickness. Also known as: High altitude cerebral edema, Altitude anoxia, Altitude sickness, Mountain sickness or High altitude pulmonary edema. Definition. Acute mountain sickness is an illness that can affect mountain climbers, hikers, skiers, or travelers at high altitudes, usually above 8,000 feet (2,400 meters).