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After effects of smoking

There are no proven ways to reverse the clock, but there is one known way to look older than your years: start smoking. Smoking can change your appearance by altering your teeth, hair, and skin.

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Nicotine is the addictive drug in tobacco smoke that causes people who smoke to continue to smoke. Along with nicotine, people who smoke inhale about 7, other chemicals in cigarette smoke. Many of these chemicals come from burning tobacco leaf. Some of these compounds are chemically active and trigger profound and damaging changes in the body.

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The effects of any drug including tobacco vary from person to person. How tobacco affects a person depends on many things including their size, weight and health, also whether the person is used to taking it. The effects of tobacco, as with any drug, also depend on the amount taken. In Australia, tobacco use is responsible for approximately 15, deaths each year.

In — approximately three-quarters of a million hospital bed-days were a result of tobacco use. There is no safe level of tobacco use.

Use of any drug always carries some risk—even medications can produce unwanted side effects. It is important to be careful when taking any type of drug. A high dose of nicotine can cause a person to overdose. This means that a person has taken more nicotine than their body can cope with.

The effects of very large doses can include:. Tar in cigarettes coats the lungs and can cause lung and throat cancer in smokers. 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.

How does smoking affect the body?

Passive smoking occurs when a person who is not smoking breathes in the smoke from people who are smoking. Passive smoking can irritate the eyes and nose and cause a of health problems such as heart disease and lung cancer. Tobacco smoke is especially harmful to babies and young children. Nicotine can affect the way the body processes many different drugs. This can affect how these drugs work.

For example, nicotine can decrease the effectiveness of benzodiazepines.

Smoking while taking the contraceptive pill increases the risk of blood clots forming. Check with your doctor or other health professional whether nicotine might affect any medications you are taking. In general, using drugs when pregnant can increase the chances of going into labour early.

This can mean that babies are born below the normal birth weight. If a mother uses drugs while breastfeeding, they may be present in her milk, and could affect the baby.

Check with your health professional if you are taking or planning to take any drugs during pregnancyor while breastfeeding. People who use tobacco regularly tend to develop a tolerance to the effects of nicotine.

This means they need to smoke more tobacco to get the same effect. They may become dependent on nicotine. Dependence can be psychological, physical, or both.

The effects of smoking on the body

People who are dependent on nicotine find that using the drug becomes far more important than other activities in their life. They crave the drug and will find it very difficult to stop using it. People who are psychologically dependent on nicotine may find they feel an urge to smoke when they are in specific surroundings or socialising with friends.

Tobacco facts. Last updated 27 April Effects of tobacco and smoking The effects of any drug including tobacco vary from person to person. Immediate effects of smoking Low to moderate doses 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 bad breath decreased appetite dizziness nausea, abdominal cramps and vomiting headache coughing, due to smoke irritation.

Higher doses A high dose of nicotine can cause a person to overdose. The effects of very large doses can include: an increase in the unpleasant effects feeling faint confusion rapid decrease in blood pressure and breathing rate seizures respiratory arrest stopping breathing and death.

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Smoking - effects on your body

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