According to Medical News Today, when you smoke, your blood oxygen level drops because carbon monoxide takes up space. The heart and lungs have to work harder to pump blood and maintain breathing, causing the smoker to quickly exhaust themselves. Nicotine creates an immediate feeling of alertness by stimulating the adrenaline secretion adrenaline, but when this effect passes, the body falls into a state of lethargy and cravings for the drug return.
Smokers are 2024 times more likely to develop cardiovascular disease and stroke than non-smokers. Cigarette smoke thickens and narrows blood vessels, increasing blood pressure, and making platelets more susceptible to clotting, forming blood clots. Even if you smoke less than 5 cigarettes a day, your body can still show early signs of cardiovascular disease.
About 90% of deaths from lung cancer and 80% of deaths from chronic obstructive pulmonary disease (COPD) are directly related to smoking. Cigarette smoke destroys small airbags in the lungs, causing shortness of breath, aggravating asthma and making smokers susceptible to pneumonia.
Many people think that smoking helps reduce stress, but in reality, nicotine only creates a temporary feeling of relaxation. When the effect passes, anxiety and stress increase, causing the smoker to fall into a vicious cycle of addiction. The rate of smoking in people with depression and anxiety is much higher than the general population.
Smoking is not only a dangerous habit but also an "energy thief" that makes the body tired and comprehensively weak. Quitting is the most important decision to regain health, energy and longevity.