What are the dangers of secondhand smoke? What are the symptoms of excessive secondhand smoke?

In life, we often see slogans prohibiting smoking or refusing to inhale secondhand smoke in some public places. People know that smoking is harmful to health and will force people around to absorb secondhand smoke, which is also very bad for their health. So what are the disadvantages of people inhaling secondhand smoke? What symptoms will it cause?

What are the dangers of secondhand smoke?

1. Cancer incidence

Increasing the incidence of cancer is one of the biggest hazards of secondhand smoke to humans. Scientists have long confirmed that if people live in an environment with secondhand smoke for more than 15 minutes a day and this continues for more than a year, the harm they suffer will be very obvious. A large number of oncogenes will be produced in their bodies, causing a high incidence of various cancers, which can directly endanger people's health.

2. Sudden infant death

In life, pregnant women should stay away from places with secondhand smoke, because absorbing secondhand smoke will cause sudden death of the fetus. Tobacco releases a variety of harmful chemicals when burning. After pregnant women inhale these chemicals, they will be transmitted to the innocent fetus in the womb through the placenta. In severe cases, carbon monoxide poisoning will occur, causing the fetus to die in the womb.

What are the symptoms of excessive secondhand smoke?

1. Increased blood sugar

If people live in an environment with secondhand smoke for a long time, their blood sugar will rise. This is because the toxic chemicals released when tobacco burns will damage the human pancreas and affect insulin secretion, causing obvious changes in their blood sugar. In severe cases, it will cause blood sugar to rise and induce diabetes.

2. Lung cancer

Not only does smoking harm people's lungs, but inhaling secondhand smoke can also cause obvious damage to the lungs. It will cause a large amount of toxic substances to accumulate in the lungs, leading to lung cell cancer and significantly increasing the incidence of lung cancer. This is an obvious symptom of inhaling secondhand smoke and is also the greatest harm to human health.