What Are Psychic Vampires?
Have you ever sat in a group of people, on a train, bus or even next to 1 or a few people and suddenly become so tired you want to sleep?
10 minutes earlier you were well rested and wide awake, and now suddenly, BOOM, you just want to sleep.
This is because someone near you is sucking your lifeforce out of you.
In most cases, this is accidental, but I can tell you that there are people who do this on purpose.
When I was very young, I experimented with focusing on one person and draining them to the point they fell asleep.
The opposite of this is sending healing energy to someone and they fall asleep because their body starts healing (Reiki).
If this sudden tiredness happens to you, I will show you how to block these people.
If you have kids and one or more suddenly falls asleep, you can extend this technique to encompass them and protect them as well.
As a precaution, and from my experience, I suggest that anytime you are in public, you should automatically employ this technique.
How To Stop Psychic Vampires?
Start off by practicing this at home.
Sit still and image an electric light bulb inside you.
Now you turn that light on and watch it radiate out from your body for 3-4 feet (1 meter+).
You have to see ALL of your body radiating this BioPhoton light - head, hands, arms, torso, legs and feet. 
You need to maintain this meditation state for at least 30 minutes and eventually work your way up to 2 - 3 hours. Longer if possible.
Once you are good at this, you can also set this to happen automatically using a "Trigger Words"
(like a password).
You do this by saying your Trigger Word before you start this light meditation.
Your trigger word can be a regular word or one you make up like LMNOP7 or WXYZ5 or even EDCBA3. I prefer using NON words so that I keep my trigger word focused only on what I need it for and so that there is no confusion in my mind.
Kids
Once you are good at doing this, simply visualize this white light expanding to encompass the room you are in - or even all around you for several meters (yards).
Use this same mental visualization when you need to protect your kids, just expand your energy to encompass them as well.
This is not hard to do once you master it and it works, I can assure you of that.