Lifehack logo

CAFE MUSIC OF MEN'S LIFE

cafe music of life

By Bich Ngoc Vu ThiPublished about a year ago 4 min read

Here are the effects of coffee at different times of the day and the best time to drink coffee to increase energy, lose weight without affecting sleep... 1. How does the body react to coffee? Coffee contains caffeine, a central nervous system stimulant that helps you feel alert and energized. Caffeine can affect energy levels, blood sugar, sleep quality and levels of certain hormones. Morning: Each cup of coffee contains about 92mg of caffeine, which can help increase energy and help you feel more alert in the morning. However, some people believe that drinking coffee right after waking up in the morning can have negative effects on health, due to its effects on blood sugar and certain hormones. - Cortisol hormone: Some people avoid drinking coffee right after waking up because they think it will negatively affect the stress hormone cortisol. This hormone plays an important role in regulating immune function, metabolism, inflammation, and stress. While cortisol is essential for good health, high levels of cortisol are harmful to the body and have been linked to conditions such as high cholesterol, high blood sugar, high blood pressure, and excess belly fat. While some studies have shown that caffeine can temporarily increase cortisol levels in certain groups of people, such as those who are stressed, it has little effect on cortisol levels in people who regularly drink coffee. - Blood sugar: While there is no convincing evidence that you should skip your morning coffee based on its effects on cortisol, you may want to skip your daily coffee to better control your blood sugar. A study in a group of adults found that when participants drank coffee after a sleepless night, it negatively affected their glucose tolerance (the body's ability to use and regulate blood sugar). When sleep-deprived participants drank black coffee containing 300 mg of caffeine 30 minutes before consuming a sugary beverage, their blood sugar response to that beverage increased by about 50%. This means that drinking coffee before a meal, like a high-sugar meal, may impair the body's ability to maintain healthy blood sugar levels, especially after a sleepless night or inadequate sleep. If you have high blood sugar or trouble sleeping, it's best to eat a protein-rich meal before your morning cup of coffee. Afternoon: Consuming caffeinated beverages, like coffee, can help improve performance and energy levels at the gym or wherever you exercise... which can help you get a more effective workout. The International Society of Sports Nutrition (ISSN) recommends consuming caffeine products, like coffee, about 60 minutes before your workout for the greatest benefit. Drinking coffee in the afternoon at work can also help you perform better mentally. Caffeine can increase alertness and enhance brain function. This is why so many people reach for a cup of coffee to improve their efficiency and performance during the day. However, it is important to note that drinking coffee in the afternoon, or even earlier in the day, can disrupt sleep, especially if you are sensitive to caffeine. Some studies have shown that drinking caffeinated coffee within 6-8 hours of bedtime can disrupt sleep. Although caffeine tolerance varies from person to person, if you are sensitive to caffeine, it is best to stop drinking caffeinated beverages within 8 hours of bedtime. Evening: Because caffeine increases alertness, most people who are sensitive to caffeine avoid drinking coffee in the evening, especially before bed. However, your sensitivity to caffeine also depends on your genes. Some people have no problem falling asleep immediately after drinking coffee, while others experience disrupted sleep even if their last cup of coffee is several hours before bedtime. For people who are sensitive to caffeine, drinking coffee too close to bedtime can increase the time it takes to fall asleep and decrease total sleep time. This sleep disruption can lead to consuming too much caffeine the next day to boost energy levels, which can impair the next night's sleep cycle.

This dependence on coffee to compensate for disrupted sleep is known as the "coffee cycle." Therefore, it is best to drink caffeinated coffee at least 8 hours before bedtime to minimize the negative effects of caffeine on sleep. 2. When is the best time to drink coffee? There is no solid scientific evidence to suggest a “best time” to drink coffee. However, drinking coffee too late in the day, within 6-8 hours of bedtime, can disrupt sleep. Therefore, it is best for most people to limit their coffee intake to late morning to early or mid-afternoon. For those with high blood sugar and stress, it is best to hold off on your morning coffee until after you have eaten a protein-rich, nutritious meal, which can help balance blood sugar and cortisol levels. For those who want to use caffeine as a natural workout enhancer, drink coffee about 60 minutes before a workout for best results. 3. Tips for Managing Caffeine Intake Keep your caffeine intake below 400 mg per day, which is the amount found in about four cups of coffee. Exceeding this limit can lead to symptoms such as irritability, rapid heartbeat, insomnia, restlessness, and nausea. Pregnant women should limit their caffeine intake to 200 mg per day or less. Consuming more can increase the risk of miscarriage and other complications, such as low birth weight. If you drink more than four cups of coffee per day, you may be consuming too much caffeine. Here are some ways to manage your caffeine intake: Replace a few cups of regular coffee with decaffeinated coffee. Try a lower-caffeine alternative like green tea, which has just 29.4 mg of caffeine per cup. Use herbal teas like hibiscus tea, which is caffeine-free…If you find that drinking coffee late in the day or at night disrupts your sleep, try holding off on your last cup of coffee for a few hours to see if it improves your sleep quality. While enjoying coffee in the morning and afternoon can help boost energy, performance, and workouts, drinking coffee too late in the day can negatively impact sleep. Additionally, drinking coffee early in the morning may not be the best idea for people with high blood sugar or who are stressed.

health

About the Creator

Reader insights

Be the first to share your insights about this piece.

How does it work?

Add your insights

Comments

There are no comments for this story

Be the first to respond and start the conversation.

Sign in to comment

    Find us on social media

    Miscellaneous links

    • Explore
    • Contact
    • Privacy Policy
    • Terms of Use
    • Support

    © 2026 Creatd, Inc. All Rights Reserved.