The questions you're asking are not really coherent. mRNA vaccines are pretty well understood. The vaccine delivers a payload to your own cells which cause them to produce viral proteins. These proteins in turn cause an immune response and help you fight off any future infection because immune cells have memory and leverage information from the vaccine proteins to fight off the real virus.
mRNA vaccines are essentially a form of genetic engineering but their safety record is better than basically all other forms of immunization so if you've already had 3 boosters and no negative side-effects then getting another one isn't going to hurt you any more than the previous shots.
You should also quit smoking and start exercising since that's better than whatever else you could do for your health and general well-being.
mRNA vaccines are essentially a form of genetic engineering but their safety record is better than basically all other forms of immunization so if you've already had 3 boosters and no negative side-effects then getting another one isn't going to hurt you any more than the previous shots.
You should also quit smoking and start exercising since that's better than whatever else you could do for your health and general well-being.