Your Immune System is a Highly Trained Military
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today I’m going to talk about a very important topic and that is your own immune system you may not realize this but your immune system is the most kick-ass military that ever was to help you understand the immune system we’re gonna compare it to the US military and to do that I’m actually gonna bring on a guest and his name is commander Dave Overcash he’s been in the US Navy for 27 years he’s retired now his 27 years of service included over 300 landings on aircraft carriers five deployments to the Middle East overseas tours in Hawaii Japan and South Korea and serviced at the Pentagon Dave thanks for coming on thank you dr. Berg it’s a pleasure to be here I look forward to our discussion so what I’m gonna do is I’m gonna try to make this as simple as possible it’s difficult because it’s a complex subject but let me just attempt to do that what is the immune system the immune system is your defense system it’s your military it’s there to protect you you have various barriers you have your skin the outside and you also have the barrier of your internal skin in fact the internal skin of your body is quite large in fact it covers 400 square meters that’s the size of two tennis courts so it’s a tremendous amount of surface area and you have billions of immune cells just beneath the surface guarding that wall waiting for an invader or a pathogen viruses bacteria so that would be a front line of defense so Dave give me a comparison of that to what the military has the formal military term for that would be the four line of troops or the forward edge of the battle space there’s gonna be highly trained but not necessarily you know very specialized troops but very large numbers of them in mechanized units I might be a term some of your folks would be familiar with but you’re those are your general troops that are gonna be right up along the front that are gonna be able to detect any movement in your adversaries and be able to be the first line of defense against whatever comes against them so this would also compare to something you would see at the airport you have metal detectors you have all sorts of screening devices to weed out those bad actors or people that potentially could carry a bomb on a plane when I was in practice that I would do seminars in governmental agencies so I bought online these those little credit card knifes right as a box cutter I thought they’re really cool they actually fold up the credit card so uh you know where this is going I basically bought one put in my wall and I forgot about it and I actually somehow took a flight and that wasn’t even detected but then the next week it was in my wallet I went to do one of my seminars had the governmental agency in DC and so as I went through security I just remembered as he was going in that I had that in my wallet and my heart started to pound and all of a sudden but the little red light went off they opened up the wallet and found this credit card knife and they called I don’t know what code code red or something they call people to shut down the entire building and they pointed to me and they put me on the wall put me in handcuffs and I said no no no you can have it you can write so they took me to a room to wait for the FBI to come they wanted to check me out just to make sure so I’m like I’m just here to do a seminar what’s happening and I mean unfortunately there’s a huge line of people and they’re like they couldn’t leave they couldn’t get in everything was frozen so I had to wait for some hours and so I’m sitting there handcuffs and there’s two military people guarded to sit there just guarding me and it was apparently a room that they had some food in it and there was a cake and they’re talking about nutrition and I I just couldn’t help myself to speak up it just wasn’t the best time to talk about you know car bhai so I kind of quickly so then the middle of the FBI came and they just they said what’s your intent I said I just thought it was cool and I got in so they go yeah this is kind of cool and so they escorted me to the car and everyone was watching and I had to secure this weapon in the car so I can go back and do my seminar presentation so this is another example how the immune system would work it’s constantly scanning for pathogens things that are not itself and a very important part of immune system is to differentiate between the good guys and the bad guys so the main players on the front line of defense are the phagocytes okay these are cells that eat bacteria and viruses and the top professional phagocyte is called a macrophage macrophage means big cell that eats it’s pretty much acts as a garbage disposal it eats up debris but if there’s an invader that macrophage will go in there and take it down and if there’s a lot of invaders it will hold the fort while it recruits back up so this part of the immune system is called the innate which is part of the immune system that doesn’t need to Train any specialists you’re pretty much born with this these are general soldiers that have a nonspecific defense mechanism so they can handle little stuff but when things get too crazy your body recruits more specialists from this system right here this is called the adaptive immune system or the acquired so then we have the neutrophil now when you get an infection and you have mucus and pus 70% of that is made out of neutrophils okay so neutrophils have three weapons they can eat microbes but they also control chemicals as well as a net over the microbes and so the chemicals of the use are hydrogen peroxide the active ingredient in Bleach so they use bleach to kill these microbes as after they pulled them in what’s interesting in the military is there are certain types of chemical warfare that they use so Dave why don’t you give us a comparison on yeah there sure is there’s chemical and biological weapons that they’re very effective and neutralizing an adversary everything related to a chemical kind of attack slows you down and has a an inordinate impact on you compared to normal conventional weapons I remember when I went to basic training that was in 1983 I was in the military the army reserved for five years I was a medic we had to go through this gas chamber and of course they did not give us really toxic chemicals but they exposed us to tear gas and that was a major thing for a lot of people including myself I can’t even imagine being exposed to something even stronger than that because that was pretty strong so the neutrophil will also throw a net like spider-man on the pathogen with chemicals to dissolve it you know your your example they’re kind of like wrapping up and then adding chemicals what it reminds me of is is indirect fires that are used in the military where a let’s say some troops are on the ground and they need to call in artillery support or close air support what they might do is term that that’s used as maybe is bracketing you know they’ll call in a fire and they’ll see where that bomb lands they’ll see where that show lands and then they’ll adjust that fire and then when they get it on to exactly where they want it they’re gonna ask for maximum effect of the available indirect fires and and then yeah they’ll be able to take out the adversary that way so we have the macrophage the neutrophil these are both phagocytes then we have something over here called the natural killer cell so one of the things that this cell does is it releases something called interferon interferon comes from the word interfere because the function of interferon interferes with viral reproduction so it stops the production of viruses which is the virus weapon so it slows down the production of the enemy the leadership of the and military realized we have to destroy their means of replicating their capabilities and so the United States ate their force in World War two based i