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If the blood supply to the brain is insufficient, there is a temporary lack of oxygen, so when you get up, sit on the edge of the bed for a while, do not stand up immediately, and then go to the toilet.
Ask you about the normal phenomenon, when a normal person is sitting or squatting, he will suddenly get up and have a period of dizziness.
The smoke produced by smoking contains nicotine, tar and other components, and bathing produces a large amount of water vapor, which together is similar to artificial rainfall (humidity and condensation nuclei are present). It is recommended to smoke and exhaust before taking a shower.
Then tell your dad that smoking is not good for your health, there are many harms, etc., for example, it is the worst for the lungs.
If you take someone else's stuff, you should at least ask first.
Surely not according to your ability!!