Blood poisoning can occur if an infected substance enters your blood stream through an open wound. Not quite certain of the question: Is the 'someone else in the water' just a person simply swimming in the same water as you? In that case it is very unlikely to cause any harm to you. Or is the person bleeding into the same water that you are swimming in? Even then, you will be all right if you don't have an open wound, and the blood leaking into the water is not infected.
people say it is rare to get a diseases by using other peoples mascara but I don't know for sure.
That's a blood transfusion.
transfusion
Only if you have a compatible type.
If the blood group is a match, and the donor wasn't sick, you'll be OK.
Yes, you can bathe with someone else during your period. Obviously if you don't use a tampon or menstrual cup the blood would go in the water, but blood is no less hygienic than any other vaginal fluid so if the other person doesn't mind then that's not a problem.
Someone with schizophrenia who wasn't taking medication would have the same blood pressure as anyone else (112/64).
A blood worm eats fresh water snails and not much else
Yes, assuming they have sex with someone else who is infected.
No. You would have to be a O blood type. That is the "universal" blood donor. The best kind.
it means you are having a nightmare and nothing else.
because if u have a different blood type than someone else (except for O+) and u use their blood u could get really sick or even die.