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Vaccinations actually have less protection? don't know. that's curious for sure. something they're going to certainly talk about. but also those vertical lines, we're going to nerd out for a second, jake, but those are called confidence intervals. it can vary within that line. and if you look at those vertical lines, tons of overlap there. so point is how robust is this data? that's what they're going to look at, how meaningful is it? one other study talks about this is out of the "new england journal of medicine." in this case they looked at boosters specifically and says how well does it com...

>> in your world. >> you know what a head butt is. >> a head fan knee? but i want to get back to the study. this study talks about the politics. it is 1,006 people. 1,006 people which is representative of 330 million of america. my mathematics say that is .00003% of the u.s. population. that's how credible it is. >> the study is more than that. >> that's how they do nielsen ratings. >> mcdonalds is millions and billions served. i guess you can take a few more. >> you know what was wrong

Left hand is down, then there's a stroke on the right side. probably you can hold both hands without any problem, so you're safe. and finally, s stands for slurred speech and t stands for time. so time lost is brain lost, the sooner you get the patient to the emergency room, call 911, and that's how you know someone has stroke and you can prevent it. now, this particular study talks about vitamin "b," they looked at a study coming from china. published in neurology. if you've been taking vitamin "b" for six months, it can reduce the risk of strong by 7%. you may say big deal, 7% is not much. i...

Protective so we don't know -- i mean, there might be different reasons why people of different ages drink coffee. people who are younger may be drinking coffee for reasons related to work or stress. i know, for example, that time i drank the most coffee was in residency and that was because i was exhausted all the time. but i felt like i was under a lot of pressure to actually get things done and drank a lot of coffee at that time and might be more related to sleep or sleep deprivation and also related to perhaps even the type of coffee that people drink so we don't know if people in differen...