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.
Oxygen derived from the air is delivered via the bloodstream to the body organs and tissues. A low blood oxygen level, or hypoxemia, can occur due to reduced environmental oxygen or a problem affecting the respiratory or circulatory system. In many people with hypoxemia, several factors contribute to the low blood oxygen level. Video of the Day