Coffee eyedropper with the best pick-me-up effect.-what's the pick-me-up effect of black coffee?

Stephen Miller, a neuroscientist at the University of Health Sciences Unified Service in Maryland, found in 2013 that drinking coffee when cortisol levels peaked between 8am and 9am was not the best pick-me-up and produced tolerance to caffeine.

Cortisol is an important hormone that can help the body regulate the biological clock and improve alertness. Cortisol levels rise and fall in the body and begin to rise after getting up in the morning and begin to fall back about an hour later. Miller's study found that people's cortisol levels peaked between 8am and 9am on average.

Miller believes that drinking coffee after this peak is better because the caffeine in coffee promotes the production of the hormone when cortisol levels drop. It's wasteful to drink coffee when cortisol levels are high, and it's easy to tolerate caffeine, which means you need an extra cup to achieve the same pick-me-up effect. One of the main principles of pharmacology is to take medicine only when needed, otherwise drug tolerance may occur. "in other words, the effect of drinking the same cup of coffee in the morning may be poor."

Some nutritionists say that drinking coffee at breakfast will make the heart beat faster and cause the stomach to contract. The sugar consumed in breakfast is quickly absorbed by the body, causing a strong sense of hunger. At this time, people will become irritable, absent-minded and don't want to do anything but eat.

Best time: 9:30-11:30

According to Stephen Miller's calculations, the best time to drink coffee every day is between 9:30 and 11:30 During this period, the interaction between caffeine and cortisol reached the optimal state. He also points out that cortisol levels peak again between 12:00-1pm and 5:30-6:30, meaning that drinking coffee during these periods also reduces the pick-me-up effect.

In addition, the content of cortisol in the human body will also be related to people's physique and schedule. Early risers' cortisol levels peak earlier than those who like to sleep in, so the best time to drink coffee is earlier, and those who get up late should drink coffee later.

Drink less coffee after dinner

There are also different opinions about the best time to drink coffee. Some researchers believe that drinking coffee in the afternoon is the best, helping to counteract the lack of concentration caused by lunch. But whether drinking coffee in the morning or drinking coffee after lunch, it avoids the irritation to the stomach caused by drinking coffee on an empty stomach, and can also promote gastrointestinal peristalsis, help digestion, and decompose high-calorie and high-fat foods.

It is best not to drink coffee after dinner to avoid affecting sleep. If you want to stay up all night by drinking coffee, you may drink too much without knowing it, which is bad for your health.