'... people who care enough to get a booster are more likely to care proactively about their health' Are there studies to show people who care about health get

'... people who care enough to get a booster are more likely to care proactively about their health' Are there studies to show people who care about health get boosters? My neighbors are hyper healthy and undosed. I am undosed and I exercise regularly. I generally see many people who sat on couch for two years put on considerable weight. Getting dosed while eating ourselves into 2x pants sizes doesn't seem to be good for health, as it increases the co-morbidity counter.