Transcript Smoking and Your Health

Smoking and Your
Health
Chapter 11. 2
What’s in tobacco smoke?
• Some of the most deadly chemicals in
tobacco smoke are
TAR,
CARBON MONOXIDE,
and
NICOTINE.
TAR
• Dark sticky substance that forms when
tobacco burns
• Causes the cilia to clump together;
prevents cilia from functioning
CARBON MONOXIDE
• Produced when substances in tobacco are
burned
• Colorless odorless gas
NICOTINE
• Stimulant drug
• Increases the activities of the nervous
system and heart (increases heart beats
and blood pressure)
• Addiction: physical dependence
HEALTH PROBLEMS AND SMOKING
• Common health problems induced by
smoking are
CHRONIC BRONCHITIS,
EMPHYSEMA,
And
LUNG CANCER.
CHRONIC BRONCHITIS
• Irritation of breathing passages due to air
passages being clogged by mucus. (air
passages are smaller)
• If the irritation continues for a long
period of time it is chronic. This can
cause permanent damage.
EMPHYSEMA
• Serious disease that destroys lung tissue
and causes breathing difficulties
• For some people it becomes difficult to
even blow out a match.
LUNG CANCER
• Cigarettes contains more than 50
different chemicals that can cause cancer
• The cancer cells take away space in the
lungs that is used for gas exchange.
ATHEROSCLEROSIS
• Physical condition in which
chemicals from tobacco smoke are
absorbed by blood vessels.
• Those chemicals lead to a buildup
of fatty material inside blood
vessel.
• High increase of potential for heart
attacks
• SMOKERS ARE MORE THAN
TWICE AS LIKELY TO HAVE
HEART ATTACKS.
PASSIVE SMOKING/2ND HAND SMOKE
• Associated with the development of
bronchitis and other respiratory
problems in about 300,000 young
children in the U.S. each year.