4 specifically affect caffeine metabolism, 2 control the rewarding effects, and the last 2 are connected to cholesterol and blood sugar.
In fact, there are 8 genetic variants linked to caffeine consumption, 6 of which were identified by the Harvard School of Public Health. So, if caffeine doesn’t affect you, there could be some genetic reasons: However, within these small differences, there can be variations in our sensitivity to certain substances including caffeine.
DOES CAFFEINE SPEED UP METABOLISM CODE
The caffeine content of your final cup of coffee will vary depending on your preferred brewing technique, size, and coffee beans used.Ĥ Reasons Caffeine Doesn’t Affect Me GeneticsĪll humans share 99.9% of our genetic code so the genetic differences between us are ridiculously small. Like how you get much more done when not tied to your inbox.Īs the caffeine is broken down by your body, this frees up these A1 adenosine receptors allowing adenosine to bind to them again, making you sleepy. However, these adenosine pathways are actually there to make you sleepy, so having caffeine in the way keeps you more alert. It might sound like the kind of thing that would make your brain less active, not more. This is what the caffeine does – turns off the receiver. Your boss has sent the message, but your computer is turned off. When you drink coffee, caffeine likes to fill these receptors up which blocks the adenosine from binding to them and sending signals. Caffeine affects the adenosine receptors in your brain (the parts of your brain that pass and receive the messages that make you work). Psychoactive just means that it affects how the brain works. First thing first, what is this magical component of coffee?Ĭaffeine is a bitter-tasting, psychoactive substance.