According to my colleagues, lead is toxic, zinc is not, and it is all aimed at the brain-this is only within a certain range. Whether poisoning really depends on the type of work, such as finance. Some companies have a certain distance from their headquarters and factories, so the probability of poisoning is very small; If you choose again, you should not only deal with it, but also endure the taste of the medicine, and it is somewhat toxic. That's for sure.
The general company will have a physical examination every six months. You can look at the medical report. If it is not suitable, the company will clearly put forward the blood thickness, which is inevitable.