You can die from radiation poisoning if you are exposed to enough of it to cause irreparable damage to your body's systems. The radioactive material regulation system is in place to ensure that no one is exposed to levels of radiation that could cause short-term harm.
Time, distance, and shielding are the simplest ways to avoid harmful radiation exposure. You should limit your exposure to the radioactive source, increase your distance from it, and shield yourself by placing objects in the way. Nuclear regulation is based on these principles to reap the benefits of radioactive materials while reducing human health and the environment.