This might sound ridiculous, but
I want to become immune to the top ten most used poisons to kill people. I'm afraid that I'll end up in a situation where I'll be poisoned and I want to be able to stay alive. Should I follow through?
Most poisons are just chemicals that fuck up your body. You literally can't be "immune" to them without completely altering your body chemistry. It's not like developing an immunity or resistance to bacteria. There are thousands of different forms of poisoning. Poisoning just means your body is being damaged or destroyed by a foreign substance. You're talking bullshit.
I'm not saying there's anything wrong with you. If you are paranoid about a lot of things, I'd suggest maybe seeing a psychiatrist about it, because that could be signs of a problem. Just be careful.
>The LD50 point makes the poison.
That statement makes no sense at all. LD50 isn't a measure of toxicity and it doesn't determine whether something is toxic or not. Also, there's no such thing as an LD50 "point". It's a measure of weight or volume, not time.
I'm going to take a guess that you just recently heard the term LD50 and you've been desperatley waiting for a chance to drop it in to a conversation to try and make yourself sound clever.