Upper UTIs are infections of the kidneys. These are potentially life threatening, if bacteria move from the infected kidney into the blood. This condition is called sepsis. Sepsis can cause dangerously low blood pressures, shock, and death.
So whe you hold your breath, you stop getting oxygen in your lungs that go to your heart. The oxygen level in the blood drops, so your muscles need more oxygen, so the heart pumps faster. This is like running, your muscles need more oxygen so heart pumps faster
Rating Newest Oldest. Best Answer: After a few minutes, around 3 or 4, a person holding their breath will fall unconscious. The body will start breathing again automatically after that and the person should come to. You really shouldn't ever hold your breath to this point, but that's what happens, for your information. And also, doing it in water for prolonged periods of time is a TERRIBLE idea.