Some vampires are able to be immortal if they achieve that ability, yet many don't do so in their lifespan. Usually by magic, they are able to live longer.
Most vampires hunt for their victim or prey during nighttime (mythical,non-mythical) They can have abilities but only limited ones.
Not to be confused with an Energy Vampire-Someone who steals energy from those who have "extra" energy. Anyone can be an energy vampire, Mythical or non-mythical.