Tim Allen. This is the latest accepted revision, reviewed on 7 April 2017. For those of the same or a similar name, see Timothy Allen (disambiguation). Timothy Allen Dick (born June 13, 1953), known professionally as Tim Allen, is an American actor, comedian and author.
Not necessarily. Some of the symptoms of low oxygen can be shortness of breath, fast heart rate, changes in the color of the lips and fingernails, but some people will have a low oxygen level without experiencing any of these symptoms. Others may experience these symptoms without having a low oxygen level.
Asker's rating. 1  Clearly the importance of available oxygen to every cell of the body is a matter of health or sickness, weariness or vitality, a weak immune system or a strong one, and even life or death. In fact, after about 6 minutes the brain without oxygen begins to die. It is an essential nutrient. The brain becomes dead.