The best thing you can do is to not start smoking. It is also important to avoid inhaling tobacco smoke in any form.
Some of the components of a cigarette are:
Tar is the product of smoke that remains in the filter. Each cigarette contains between 0.8 and 3 mg of nicotine and between 7 and 20 mg of tar, and produces about 80 cm3 of carbon monoxide, which has a strong affinity with haemoglobin and causes a decrease in blood’s ability to transport oxygen.
Nicotine is responsible for most of the effects of tobacco on the body and causes physical dependence by activating neural circuits in the brain that are associated with pleasurable sensations.
Another effect of nicotine is the release of adrenaline from the adrenal gland, which is responsible for increased blood pressure and heart rate.
When nicotine is inhaled through smoking, it is absorbed rapidly, even faster than by the intravenous route. After 10 seconds is already in contact with brain tissue. The half-life of nicotine in the blood is less than two hours and, as the concentration decreases, the symptoms that awaken the desire for a cigarette appear again.
Of course variations between people depend not only on the person’s body, but also depend on various factors such as, the number of cigarettes smoked, how deeply the smoke is inhaled, how long it’s retained in the lungs and the years of consumption, among others.
For more information visit:
Tobacco Free Initiative (TFI)
http://www.who.int/tobacco/en/
Tobacco and Cancer
http://www.cancer.org/cancer/cancercauses/tobaccocancer/index
Creation date: 17/09/2015 - Last modification date: 09/10/2015
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