Human Psychic Vampires may not even be aware that they are draining others energy. It just happens. Some however do it on purpose, they may make you feel guilty or put you down or simply incite negative inner reactions and negative inner dialogues in you, thereby causing energy loss. There are some cases where powerful psychic vampires may actually invade your auric space and drain your energy. Reputed psychologist and hypnotic regression expert Dr Bruce Goldberg has even warned to never look a psychic vampire in the eyes.
Astral Vampires cause a different type of energy drain. Astral vampires are the soul component of what are popular in internet lore as "Reptilian Aliens". These are the occult demons of ancient secret societies. Black Magicians may perform rituals when a mother is pregnant, the babies are called moon children sometimes, and they have an astral demon attached to them for negative purposes.
We can identify demon attachment to a large extent using Astrology. One clue is the placement of Asteroid Kali in the natal chart. All type of energy drain can be defeated successfully using a mix of violet light visualization, psychic positive self talk, NLP techniques, organic diet and physical exercises that boost muscle strength. More on this can be found on the articles page.