The science of why coffee is good for you

– Man, I love coffee. Tastes so good and makes me feel good. But is it good for me? Huh. Hey, Jess! You’re basically a scientist. Is coffee good for me? – Well, Joe, you’re about to find out! ‘Cause we’re gonna science
the (bleep) out of it. – Nice. (funky bass music) Let me tell you what’s
happening in my brain before I drink coffee. – Okay. – Life sucks. What’s my middle name,
shoe size, last name? Oh my god I want some coffee. So I drink it, and I’m like
yeah, yeah, yeah, yeah. – Caffeine is the most
popular psychoactive drug in the world. And the way most people get it is through coffee. When you drink the coffee, the caffeine actually hijacks your brain. There are receptors in your brain meant for a chemical called Adenosine. And Adenosine is what
actually makes you feel tired, but when you drink caffeine, the caffeine takes control of those receptors, and doesn’t leave any
room for the Adenosine, and that’s why you feel alert. So how many cups do you
drink during the day? – Let’s see. I would say on average probably like, between five and eight. – You should be drinking no
more than 400 milligrams. – Which is what, 400 cups? – (laughs) No, depending on, ’cause
each cup is different in terms of how much caffeine is in it, – Okay
– But … – Wait, I’m sorry, 400 milligrams of caffeine
– Of caffeine. The FDA recommends no
more than 400 milligrams of caffeine a day. There’s about 142 milligrams of caffeine in this 12 fluid ounce coffee mug. So that’s about three mugs a day. – Okay, but so what if
I have more than that? One thing that I’m always worried about when drinking coffee, ’cause lots of times I’ll be drinking, and I’ll feel like my
heart like just going like super fast, and
I automatically think, oh my god, I’m gonna die
from drinking coffee. Is it possible that I could actually drink so much coffee that I die? And how can I find out
how much will kill me? And, so I can drink
just a little bit less. – (laughs) So it’s not necessarily
drinking too much coffee that’s gonna kill you. It’s the caffeine in the
coffee that’s gonna kill you. There was a study that showed that if you drank 12 highly
caffeinated energy drinks within a few hours, you
would most likely die. So Joe, is that coffee filtered? – It is. – That’s actually healthier for you. – Ha ha, yeah! – Coffee contains over 1,000 compounds. Some of those compounds
are healthy antioxidants, but there’s something else in coffee that according to one study, can actually raise your
cholesterol levels. But if you drink filtered coffee, the filtering process actually prevents those cholesterol-raising compounds from reaching your cup. – According to something I read online, caffeine affects your sleep, and you need a good like five hours to get it out of your system. – It should be more like six hours. Because the half life of caffeine is about six hours. So it’ll take six hours for your body to metabolize 50% of
the caffeine in there. So basically then that means if you have a cup of coffee at 8 a.m.,
you’re still gonna have 25% of the caffeine
that was in that coffee in your system by 8 p.m. – (bleeped) So for the average viewer
who’s watching this and probably drinks coffee but not as much coffee as I drink, is coffee good for you or not? – The overall consensus is yes. – Aha! – According to the latest
scientific research, coffee can reduce your risk of certain cancers, like
liver and uterine cancer. – Nice. – And reduce your risk of
cardiovascular disease. – Nice. – Type 2 diabetes. – Nice. – And possibly reduce your
risk of Alzheimer’s Disease. – N-n-nice. – And so yeah, overall coffee
is relatively good for you. – Hell yeah. Cancer-free,
sharp brain, plenty of energy, terrible breath, sorry by the way. We weren’t supposed to- we
didn’t know we were gonna stand this close. So conclusion, coffee is the (bleep). – You should probably stop drinking when you get older. Because drinking coffee
within the first hour, it can actually raise your blood pressure. – Like in the day? – Within the first hour of drinking. – Okay. – Yeah. – I’m probably not gonna do that. – (laughs)

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