EFFECTS OF SMOKING
Smoking and Respiratory Disease
Jego Alphonse I. Sayson
10 – Einstein Science
Ma’am Gabby Recto
Your lungs can be very badly affected by smoking. Coughs, colds, wheezing and asthma are just the start. Smoking can cause fatal diseases such as pneumonia, emphysema and lung cancer. Smoking causes 84% of deaths from lung cancer and 83% of deaths from chronic obstructive pulmonary disease (COPD).
Some of the effects that may be experienced after smoking tobacco include:
initial stimulation, then reduction in activity of brain and nervous system
increased alertness and concentration
feelings of mild euphoria
feelings of relaxation
increased blood pressure and heart rate
decreased blood flow to fingers and toes
decreased skin temperature
nausea, abdominal cramps and vomiting
coughing, due to smoke irritation.
Cause of smoking
Tar in cigarettes coats the lungs and can cause lung and throat cancer in smokers. It is also responsible for the yellow–brown staining on smokers’ fingers and teeth.
Carbon monoxide in cigarettes reduces the amount of oxygen available to the muscles, brain and blood. This means the whole body—especially the heart—must work harder. Over time this causes airways to narrow and blood pressure to rise, which can lead to heart attack and stroke.
High levels of CO, together with nicotine, increase the risk of heart disease, hardening of the arteries and other circulatory problems.