Why do I feel dizzy after smoking

The main reason for dizziness after smoking is that smoking causes brain deprivation of oxygen, which leads to symptoms such as dizziness. Many smokers like this dazed state after smoking, but you should understand that smoking is extremely harmful to human health. The chance of developing a tumor by smokers is several times, or even dozens of times, higher than that of non-smokers. Quitting smoking as soon as possible is beneficial to your health.

The dangers of smoking

1. Smoking causes blood clots and various heart diseases

Inhaling carbon monoxide from cigarette smoke reduces the blood's ability to absorb oxygen. Nicotine can increase the heart rate, blood pressure, weaken the heart's ability to withstand drugs, myocardial hypoxia causing coronary artery infarction, and local ischemia of the heart (or angina pectoris) promoting the accumulation of atherosclerosis, and many heart diseases begin to occur.

Smoking can cause a variety of brain diseases, reduce the oxygen and blood circulation in the brain, cause bleeding and blockage of brain blood vessels, and lead to paralysis, mental decline and stroke. The cause of stroke is that smoking causes spasm of blood vessels in the brain, making the blood more likely to clot. Smokers are twice as likely to have a stroke as non-smokers.

3. Damage of smoking to the oral cavity

Smoking can cause mouth and throat cancer. The tar in cigarettes and the heat from the smoke can inflame the salivary glands, damage taste buds, and greatly reduce the ability to taste and smell. Next, it is easy to develop oral cancer. About 2/3 of patients can still survive with difficulty after being diagnosed with oral cancer.

4. Damage to the lungs caused by smoking

Smoking can cause the cilia of bronchial epithelial cells to become shorter and irregular, as well as movement disorders, reducing local resistance and making it easier to get infected. Smoking causes lung cancer. 90% of total mortality is caused by smoking.

Nicotine is the main source of addiction

It only takes 7.5 seconds for the nicotine inhaled from cigarette smoke to reach the brain, giving the smoker a gentle and pleasant feeling. It can first excite and then inhibit the central nervous system. The half-life of nicotine in plasma is 30 minutes. When nicotine is below the stable level, smokers will feel irritable, uncomfortable, nauseous, have headaches and crave a cigarette to supplement nicotine.