00:00The world consumes 2 billion cups of coffee a day.
00:03Isn't it time we fully understand what it is we're putting in our bodies?
00:07The effects of coffee start even before you take a sip, reports The Guardian.
00:11One 2019 study found that inhaling its scent can improve memory and stimulate alertness.
00:18Okay, now you take a sip, and your world is entirely better.
00:22Yes, the placebo effect.
00:24But caffeine won't kick in until around 45 minutes after that sip.
00:28Let's talk about caffeine.
00:30Simply put, it fools your nerve cells to prevent you from feeling sleepy or drowsy.
00:34After a cup of joe, you're now alerted, and the dopamine is running wild.
00:39Phenomenal, right?
00:40Unless you overdo it, high doses can turn that mood boost into anxiety.
00:44Caffeine has a half-life of about 6 hours, so stopping its consumption around 2 to 3 p.m.
00:50seems reasonable to wind down and go to bed.
00:53Of course, that doesn't mean you should go wild in the morning.
00:55Three coffees back-to-back in the morning can have you at around 1,000 to 1,500 milligrams of
01:02caffeine before lunchtime.
01:03The goal is no big ups and downs, a balance.
01:07Hopkins Medicine says you can't have too much of a good thing.
01:11That's when the jitters come in.
01:12The increased heart rate, high blood pressure, anxiety, and restlessness at night.
01:17According to the Mayo Clinic, most adults should drink no more than 400 milligrams of caffeine a day, roughly 4
01:23cups of brewed coffee.
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