1, the impact on human immunity, long-term smoking will make human immunity decline, causing many and developing symptoms.

2, smoking affects sleep, smoking will make people seriously lack of sleep, according to a survey in Germany, the quality of sleep of smokers is seriously reduced, because tar in cigarettes contains irritating substances, which will make people's brains feel excited.

Harm of drinking:

1, brain damage affects learning

As a psychoactive substance, alcohol will also have a strong stimulating effect on people's heart, brain and blood vessels, and will also have a negative impact on people's nervous system.

2, the influence of the nerve center

Alcohol is a small molecular substance, which can easily reach all organs of the whole body and cause great damage to the nervous system, mainly manifested in uncoordinated muscles, slow response, euphoria, and decreased attention, judgment and self-control ability.

Extended data:

Matters needing attention

1, eat more cholesterol-lowering foods.

If you smoke for a long time, cholesterol and fat in human blood vessels will stick to blood vessels, leading to blood vessel blockage, resulting in insufficient oxygen and blood supply to the heart and brain, and cardiovascular and cerebrovascular diseases may occur. It is good to eat some foods containing high-quality cholesterol, such as fish, beans and fruits and vegetables. It is necessary to eat more of these foods.

Step 2 eat more grapes

Grapes can relieve cough and phlegm, which can relieve the accumulation of sputum caused by smoking, and can also alleviate the occurrence of respiratory diseases.

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