It’s a fact. Orthodox Jews love coffee. We drink it in the morning, and we drink it in the afternoon. Some of us drink it in the evening too. It is so ubiquitous in the Jewish community that even our haggados are sponsored by coffee companies.

But scientific research now shows that coffee consumed in the late hours of the evening can reset the body’s internal clock. This clock regulates many genes and biological functions that control our natural day/night cycle. The study suggests that the effects of caffeine are far beyond simple difficulty with getting to sleep.

Caffeine holds back the rise in level of melatonin, which is the major sleep hormone for the body. Fluctuation in the levels of melatonin helps the body determine the natural hours to get to sleep.

The study was carried out by two teams of scientists from the US and Britain. Volunteers observed the behavior of individual cells when they were exposed to caffeine. Dr. John O’Neill, the Joint lead researcher from the Medical Research Council Laboratory of Molecular Biology, Cambridge stated that the effect of caffeine on wakefulness and sleep has been established for long. However, how it impacted the underlying body clock has not been known until now.

When the body clock is disrupted like in the case of jet lag or working in shifts, it is known to increase the risk of different types of cancers, Type 2 diabetes, heart disease and disorders like Alzheimer’s r”l. So let’s go decaf in the afternoons.