How does an MRI scan see soft tissue without radiation?

The answer

MRI (Magnetic Resonance Imaging) works by placing your body in a magnetic field 60,000 times stronger than Earth's. This aligns the hydrogen atoms in your body's water molecules. Radio wave pulses then knock these atoms out of alignment, and as they realign, they emit faint radio signals. Different tissues realign at different rates, allowing the machine to construct extraordinarily detailed images. MRI is especially good at imaging the brain, joints, and soft tissues - all without any ionizing radiation.