Starbucks are located all over the world because of the coffee lovers that are willing to wait at the very long queue of fellow coffee addicts and ready to give their money just to get the effect of caffeine they want, then eventually make them alert and active for the whole day work. But, have you experience once that sometime, no matter how strong the coffee you have been consumed, you still have the feeling that it didn't work?
Know Your Clock
Circadian rhythm, also known as biological clock and is located in the hypothalamus - a part in the brain, is the endogenous 24-hour clock that is affecting how our body works in certain time. Anatomically, we are designed to do tasks according to what our body perceives. For example, when our eyes receive a stimulus such as light, then our circadian rhythm kicks in to function according to what we are scheduled for during daytime. Then many hormones are activated to operate and one of them has a significant correlation on the efficacy of caffeine. According to Steven Miller, a neuroscientist at the Uniformed Services University of the Health Sciences in Bethesda, Maryland, the most effective time to drink coffee is on between 9:30 am and 11:30 am because caffeine collaborate with the key hormone that regulates Circadian rhythm and boost alertness.The Key Hormone
Cortisol, often referred to as stress hormone, is known to be responsible in accord of daily rhythm that move in the body. Cortisol is most likely in high level during the period of stress because cortisol helps the body to convert glucose into energy that it can be utilized by the cells. Another study claimed that this hormone increases rapidly after waking up, between 8 am to 9 pm and can stay elevated for few other times such 12pm to 1 pm and between 5:30pm to 6:30 pm.So, you know when to rush to Starbucks in the morning because your coffee will probably be the most effective if you gulf it between 9:30 am and 11:30 am, when your cortisol are declining before it kicks in again.
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