TEST VI: CONCEPTS 20-23
NOTES L CONCEPT 20

TOBACCO IS THE NUMBER ONE CAUSE OF PREVENTABLE DEATH IN THE UNITED STATES.

NICOTINE IS A HIGHLY ADDICTIVE & POISONOUS CHEMICAL. IT IS ALSO A POWERFUL PSYCHOACTIVE DRUG THAT AFFECTS THE BRAIN & ALTERS MOOD & BEHAVIOR. NICOTINE IS ONE OF THE MOST ADDICTIVE DRUGS KNOWN, EVEN MORE ADICTIVE THAN HEROIN OR ALCOHOL.

SMOKELESS CHEWING TOBACCO IS AS ADDICTIVE AS SMOKING & PRODUCES THE SAME KIND OF WITHDRAWAL SYMPTOMS UPON QUITTING.

SMOKELESS TOBACCO CONTAINS ABOUT 7 TIMES MORE NICOTINE THAN CIGARETTES, AND MORE OF IT IS ABSORBED BECAUSE OF THE LENGTH OF TIME THE TOBACCO IS IN THE MOUTH.

CHEMICALS IN TOBACCO SMOKE INCREASE BLOOD PRESSURE, PROMOTE ATHEROSCLEROSIS, & INCREASE THE CLOTTING OF BLOOD.

FACTORS DETERMINING DOSAGE:
  1. NUMBER OF CIGARETTES SMOKED
2. LENGTH OF TIME ONE HAS BEEN SMOKING
3. STRENGTH OF OF CIGARETTE (TAR, NICOTINE, ETC.)
4. DEPTH OF INHALATION
5. AMOUNT OF EXPOSURE TO OTHER LUNG-DAMAGING SUBSTANCES.

CIGAR & PIPE SMOKERS HAVE LOWER DEATH RATES THAN CIGARETTE SMOKERS BUT STILL ARE AT GREAT RISK. THEY HAVE HIGHER RISKS OF CANCER OF THE MOUTH, THROAT, & LARYNX THAN CIGARETTE SMOKERS.

SECONDHAND SMOKE IS A COMBINATION OF BOTH MAINSTREAM & SIDESTREAM SMOKE. SIDESTREAM SMOKE IS CONSIDERED MORE DANGEROUS THAN MAINSTREAM SMOKE.

SECONDHAND SMOKE POSES A SIGNIFICANT HEALTH RISK.
THE ENVIRONMENTAL PROTECTION AGENCY (EPA) ESTIMATED AS MANY AS 3,800 LUNG CANCER DEATHS PER YEAR COULD BE ATTRIBUTED TO SECOND HAND SMOKE.

MOST PEOPLE DO NOT SUCCED THE FIRST TIME THEY TRY TO QUIT. THE IMPORTANT THING IS TO KEEP TRYING, BECAUSE MOST PEOPLE WHO TRY WILL EVENTUALLY SUCCEED.

YOUR RISK OF LUNG CANCER WILL RETURN TO THAT OF THE NONSMOKER IN ABOUT 15-20 YEARS.