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.
A: Oxygen is a colorless, tasteless, odorless gas that is necessary for life. Each day we breathe about 20,000 times, and the air we breathe is made up of approximately 21% oxygen and several other gases. Oxygen is the most important for keeping us alive because our bodies need it for energy and growth. Without oxygen, the bodyâs cells would die.