When Is the Best Time to Drink Coffee? Discover the Golden Hours for Alertness, Energy Boost, and Health

Drinking coffee immediately after waking may not be the answer. Let's examine research on the best time to drink coffee, learn about the cortisol hormone, and understand health precautions related to coffee consumption.

Many people start their day with a hot cup of coffee as soon as they open their eyes. However, drinking coffee at the wrong time can harm the body more than expected. Thairath Online dives into research on "when is the best time to drink coffee" to help you get the most effective caffeine boost without disrupting your natural hormone balance.

Why shouldn't you drink coffee right after waking up?

Many believe that drinking coffee immediately after waking (around 06:00 - 08:00) helps them shake off sleepiness quickly. In reality, at this time, our body naturally producesthe cortisol hormone(Cortisol), also known as the "stress hormone," at its peak levels.

This hormone helps the body stay alert and energized. If caffeine is introduced when cortisol is already high, it disrupts the body's natural mechanisms, causing cortisol production to decrease. This leads to "caffeine tolerance," which explains why some people feel no refreshment after their first early morning coffee.

So, when is the best time to drink coffee?

To ensure caffeine works harmoniously with your body's hormones, the best times to drink coffee are as follows:

1. Mid-morning (09:30 – 11:30)

This is the "golden hour" for coffee lovers because cortisol levels start to drop. Adding caffeine now effectively boosts alertness, helping you stay focused until lunchtime.

2. Early afternoon (13:00 – 15:00)

After lunch, many experience the afternoon slump. Drinking coffee during this period blocks adenosine, the chemical that makes you sleepy, helping your brain feel refreshed.

• Precautions: Avoid drinking coffee after 16:00 because caffeine has a half-life of about 5-6 hours. Consuming it too late can interfere with your sleep quality at night.

Is it harmful to drink coffee on an empty stomach?

For those who substitute coffee for breakfast,be cautious about stomach acid.Caffeine stimulates the secretion of hydrochloric acid. Without food in your stomach, this can cause irritation, bloating, or heartburn. Especially for those with a history of gastritis or acid reflux, it's best to eat something before drinking coffee.

Tips to maximize coffee benefits

Besides choosing the right time, how you drink coffee matters just as much.

• Choose black coffee (Americano): This allows you to get antioxidants without the interference of sugar or creamers.
• Drink plenty of water: Since caffeine is a diuretic, following coffee with 1-2 glasses of water helps maintain your body's hydration balance.
• If you experience caffeine tolerance: If you follow the timing but still feel unrefreshed, it may signal that your body is developingcaffeine tolerance.(Read more:How to overcome caffeine tolerance and reset your body to feel alert like the first cup.)

Choosing the right time to drink coffee not only boosts your work efficiency but also protects your long-term health. Waiting until after the early morning cortisol peak and enjoying your coffee around 09:30 is a simple tip that can improve your coffee experience significantly.