Tobacco contain the
addictive drug nicotine. Nicotine is readily absorbed into the bloodstream when
a tobacco product is chewed, inhaled, or smoked. Upon entering the bloodstream,
nicotine immediately stimulates the adrenal glands to release the hormone
epinephrine (adrenaline). Epinephrine stimulates the central nervous system and
increases blood pressure, respiration, and heart rate. Glucose is released into
the blood while nicotine suppresses insulin output from the pancreas, which
means that smokers have chronically elevated blood sugar levels. Nicotine
increases levels of the neurotransmitter dopamine, which affects the brain
pathways that control reward and pleasure. Smoking
causes cancer of the lung, oral cavity, pharynx, larynx, esophagus, pancreas,
kidney, bladder and cervix. Recent evidence links smoking with cancer of large
intestine and some forms of leukemia. Smoking has a direct effect on the growth
of the fetus. The more the mother smokes during pregnancy, the lower the weight
of the newborn infant.
All smokers are at extra
risk for:Coronary heart disease, Peripheral vascular disease, Aortic aneurysm, High
cholesterol, Chronic obstructive pulmonary disease, Chronic bronchitis, Emphysema,
Pneumonia, Influenza, The common cold, Peptic ulcers, Chronic bowel disease, Tooth
decay, Gum disease, Osteoporosis, Sleep problems, Cataracts, Thyroid disease
When an addicted user
tries to quit, he or she experiences withdrawal symptoms including
irritability, attention difficulties, sleep disturbances, increased appetite,
and powerful cravings for tobacco.
For more detail contact TCC
TEETH Care Centre Dental Hospital, Ahmedabad
TEETH Care Centre Dental Hospital, Ahmedabad
