Julie G wrote:
thjj wrote:Thank you—this is great! Did Dr. Bredesen mention anything about decaffeinated coffee? Is it ok for E4's to drink?
Sneak peek from the new book: Coffee is great, associated with longevity and better cognition. Keep it under 4 cups so as not to increase homocysteine and before noon. It really does affect the quality of your sleep if you drink it later in the day.
I'd imagine that's only if you metabolize caffeine. Some people don't have the gene to metabolize it (like me) and even a decaf Nespresso can affect sleep for up to two nights afterwards.
Dr Matthew Walker, the sleep neuroscientist, is very negative about coffee in general;
"Caffeine has a half-life of about six or seven hours. And a half-life simply means the amount of time it takes for a 50% of the drug to still be in your system or 50% of it to be cleared. Caffeine has a quarter life of about 12 hours. In other words, if you have a cup of coffee at noon, a quarter of that caffeine is still circulating in your brain at midnight.
So if you have a cup of coffee at noon, it's the equivalent of getting into bed at midnight. And just before you turn out the lights, you snick a quarter of a cup of Starbucks, and you hope for a good night of sleep, you know, it's probably not gonna happen.
So the advice would be; try to cut caffeine off around about midday if you can. And even if you're someone who, you know, can fall asleep fine, stay asleep, you should just know that caffeine can still impact your sleep