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
Best Answer: Can hold the breath longer with complete inspiration because the lungs will hold oxygenated air and will continue to exchange with blood (give oxygen and take CO2) while you are holding your breath. Hence you can last longer.