How does blood help our body?

it keeps us alive

I make you live

Explanation:

when the blood pumps through your body it pumps your heart and if you heart stopped working so would everything in your body then you would collapse and die

for me i have felt invisible when i was clearly struggling,or,i made a great achievement ,and,nobody took to notice me either because they just didn't see it,or,people just turned their back on me.i can see a person being invisible by choice,or,without choice like i did.the people who are invisible by choice don't try to talk to people,don't try to make friends,and,keep to themselves.i haven't been one of those people so i couldn't give you a reason.

hope this and can i get bainliest my dude : d