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Most people are aware that smoking and heavy drinking are unhealthy habits, but not many realise just how much harm they can cause.
Dr Stanley Chia, cardiologist at Mount Elizabeth Hospitals, explains the effects of smoking and drinking on our health.
Growing up, many children may view drinking and smoking as privileges of adults and therefore ‘cool’ activities to engage in. Media portrayal of smoking and alcohol use has certainly helped to perpetuate the appeal of these social habits. The importance of public awareness about the dangers of heavy smoking and drinking has never been greater.
The danger of smoking
Cigarettes contain more than 4,000 chemical compounds and 400 toxic chemicals that include tar, carbon monoxide, DDT, arsenic and formaldehyde. The nicotine in cigarettes, in particular, makes them highly addictive. There are so many diseases caused by smoking that it’s hard to decide where to begin.
Any amount and type of smoking is bad for your health. Besides being a notorious risk factor for lung cancer, coronary artery disease, heart attack and stroke, smoking can damage almost any organ in our body, leading to leukaemia and cancers of the kidney, pancreas, bladder, throat, mouth and uterus. It can damage the airways and air sacs of our lungs to cause chronic bronchitis and breathing difficulties. It can also raise our blood pressure and cholesterol levels, reduce bone density in women and increase the risk of infertility, preterm delivery, stillbirth and sudden infant death syndrome.
The danger of heavy drinking
Most people like to have a drink or two, be it beer, wine or spirits. Light drinking is acceptable and may even be beneficial for the heart. Heavy and binge drinking, on the other hand, can lead to serious medical problems.
A healthy limit for drinking is usually no more than 2 drinks (3 units of alcohol) a day for men and 1 drink (2 units) a day for women. Binge drinking means having 5 or more drinks for men and 4 or more drinks for women on one occasion.
Certain groups of people should not drink alcohol at all. These include young people under the age of 18, pregnant women, people with certain health conditions, patients on medication that will interact with alcohol, recovering alcoholics, and people who intend to drive or do activities that require attention and coordination.
Heavy drinking can lead to many serious health conditions. Binge drinking can cause immediate problems such as acute intoxication, nausea and vomiting, blurred vision, impaired judgment and alcohol poisoning.
In the long term, heavy alcohol consumption can cause high blood pressure, gastric problems, liver cirrhosis, liver cancer, pancreatitis, memory impairment, alcohol dependence and various psychological conditions. Excessive alcohol drinking can also result in accidental injuries and even death. Pregnant women who drink heavily can harm their babies.

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