Do you have trouble falling asleep or staying asleep at night? If so, caffeine could be keeping you awake even though you never consume it at night. That’s because caffeine has a longer-lasting effect than you may think.
Negative Health Effects of Insomnia
Caffeine disrupts deep (restorative) sleep and the ability to fall asleep which cuts down on total sleep time resulting in:
- Overeating and binge eating
- Weight gain
- Increased mortality — According to a study by the American Cancer Society (Mortality Associated with Sleep Duration and Insomnia), insufficient sleep can shorten your life. Causes of death associated with sleep duration include heart disease, stroke, and breast/colon cancer.
Why Caffeine Has a Lasting Effect (Half-Life Explained)
Caffeine has a half life of five to six hours. In other words, it takes five to six hours for the amount of caffeine in your body to be reduced to exactly one-half of its concentration. (Translation: the amount of caffeine remaining in your body after six hours is equal to the amount you excrete.)
How It Breaks Down
The half-life of caffeine in a healthy adult is six hours. This does not take into consideration half-life variables (see below) that can influence how fast/slow a person metabolizes caffeine.
- Due to the half-life of caffeine, caffeine starts accumulating in your body when you consume it throughout the day. This could be in the form of another drink, food, or even medication.
- For example, if you drink two cups of coffee every day at 8:00 AM, by Day 3 at 2:00 AM nearly 45 gm of caffeine could still be in your system.
- To compound the caffeinated effect, if you drink another cup of coffee at 2:00 PM as an afternoon pick-me-up, by Day 3 at 2:00 AM, nearly 90 gm of caffeine could still be in your system. That’s nearly the amount of caffeine in a 16-oz Frappuccino® — a clue as to why you may not be able to sleep well.
Your Personal Buzz (Half-Life Variables)
The half-life of caffeine is not a fixed number and can vary based on the individual. Variables include your: Continue reading “KRON 4 | Why Caffeine Has Long-Lasting Effects”