When is the best time to drink your coffee? According to science, first thing in the morning isn't it. Check out the image above.

To understand all of that, we must first understand our body.

Chronopharmacology can be defined as the study of the interaction of biological rhythms and drug action. The biological rhythms also include your circadian clock, which alters your physiology and behavior in a variety of ways. It can also alter the properties of drugs including drug safety, (pharmacovigilance), pharmacokinetics, drug efficacy, and perhaps even drug tolerance.

SCN (suprachiasmatic nucleus) controls your sleep-wake cycle, feeding and energy consumption, sugar homeostasis and your hormones. SCN also controls cortisol, which is typically referred to as the "stress" hormone. Although your cortisol levels peak between 8 and 9 AM, there are a few other times where–on average–blood levels peak again and are between noon to 1 PM, and between 5:30 to 6:30 PM.

In the morning then, your coffee will probably be the most effective if you enjoy it between 9:30 AM and 11:30 AM, when your cortisol levels are dropping before the next spike.

 [I Love Coffee]