Say No To Excessive Fatigue & Join The Portable Oxygen In A Can Revolution. Enhance Your Energy, Naturally & Speed Up Your Reaction Times. Made In Britain & In Stock.
- Pure Oxygen On The Go
In Stock & Ready For Delivery.
Push Towards Your Goals With ...
- Buy Oxygen
In Stock Now
For Health, Beauty, Sport & Fitness
- Oxygen Hiking
Portable & Lightweight Canisters
For Hiking & Mountain Climbing. ...
- ClearO2 Shop
See Our Full Range
Accessories & More
- About ClearO2
Understand The Benefits
Improve Performance
- Home Oxygen
Boost Your Energy Levels At Home
with a Natural Therapy to ...
- Pure Oxygen On The Go
Search results
People also ask
Does coffee make you tired?
Does caffeine make you feel tired?
Does coffee Make you Sleepy?
What happens if you drink coffee in the morning?
Can coffee keep you awake all night?
Mar 12, 2024 · For many people, this daily dose of caffeine helps them wake up and stay alert, but for others, it can make them more tired. Below are the reasons why caffeine may make some people sleepy.
- Overview
- 1. It’s because coffee blocks adenosine
- 2. It’s because coffee is a diuretic
- 3. It’s because of the sugar in your coffee
- How to minimize these effects
- The bottom line
People react to caffeine differently. While many people feel more alert after drinking caffeinated coffee, some might feel tired for several reasons.
Is it really the coffee?
As a stimulant, caffeine can boost energy levels and make you feel sharper. In the United States, the biggest dietary source of caffeine is coffee. About 62 percent of Americans drink coffee every day, according to the National Coffee Association.
Not everyone reacts the same way to caffeine. Some people feel tired after only one cup. Others can drink several cups a day and feel no ill effects.
Adenosine is a chemical in the central nervous system. It regulates your sleep-wake cycle. When you’re awake during the day, your adenosine levels increase, eventually making you drowsy by suppressing the activity of cells in the basal forebrain. After you fall asleep, adenosine levels drop.
Caffeine in coffee blocks the brain’s adenosine receptors from receiving adenosine, but it doesn’t stop the actual production of adenosine or the ability to form additional adenosine receptors. This means that when the effects of caffeine wear off, there’s a buildup of adenosine wanting to bind to its receptors. This can lead to tiredness.
Caffeine has been considered a diuretic for years. A diuretic is a substance that makes you pass urine more often. This lends itself to the theory that drinking a lot of coffee increases your risk of dehydration.
But many scientists argue that caffeine-containing beverages don’t really impact urinary output in the long term any differently than other beverages.
If you do find that drinking coffee makes you urinate more frequently than normal, you may get stuck in a cycle of dehydration that makes you feel more tired.
First of all, your body loses water when you go to the bathroom. The water loss can reduce the fluid in your blood, which can affect how your cardiovascular system responds to maintain blood pressure and blood flow. Dehydration can lead to a rapid heart rate and low blood pressure. This can lead to feelings of fatigue and sluggishness.
When dehydrated, cells in the body lose fluid volume. When this affects their normal function, it can also lead to feelings of sluggishness. It’s natural to reach for another cup of coffee to counteract this sluggishness, but this can start the cycle all over again.
Caffeine is also causes vasoconstriction. This means it causes certain blood vessels to narrow. This could alter blood flow through different parts of the body.
If you like to add sugar to your coffee, you may have regular sugar “crashes” after drinking it. This added sugar may come in the form of whipped cream or shots of syrup. These are often standard in specialty coffee drinks.
The body processes sugar much faster than caffeine. After sugar is used up by your body, you may experience an energy slump. How quickly this happens depends on the person. It could happen within 90 minutes after ingesting sugar.
If you don’t want to give up your coffee habit, try to stick to the daily intake recommendations.
Up to 400 milligrams (mg) of caffeine per day is considered moderate. This is about two to four 8-ounce cups of brewed coffee per day, depending on the coffee mixture.
To further minimize fatigue, avoid coffee-based drinks with sugary syrups and creams. You should also limit your use of added sweeteners. Alternating one cup of coffee with one cup of water may also help.
If you regularly experience an afternoon slump, try switching to decaf coffee or tea after lunch.
Coffee itself won’t instantly make you feel tired, but the caffeine it contains may actually lead to fatigue after regularly drinking it over time. If you stick to 400 mg of caffeine per day or less and go easy on the added sugar, you should reap the benefits of caffeine and avoid its drawbacks.
- Claire Gillespie
- Digestive Issues. Caffeine is a drug, and consuming too much for your body can overstimulate your central nervous system, leading to what's called caffeine intoxication.
- Irritability and Anxiety. Caffeine gives you that wake-up effect because it blocks adenosine, a chemical in your body that makes you feel tired, Dr. Posina explains.
- Headache. The funny thing about caffeine is that it's both a treatment for headaches and a cause of them. Advertisement. You'll find caffeine added to headache and migraine meds, as it helps constrict blood vessels to ease head pain, per the National Headache Foundation.
- Fatigue. You expect that it'll perk you up, but drinking too much coffee can cause "rebound fatigue," Dr. Posina says. Advertisement. "You feel really energized after drinking caffeine, but when the effects wear off, you have this rebound that leaves you much more tired.
Jun 26, 2023 · While coffee may increase alertness for many, for some people, it can make them tired. This may be due to a tolerance to caffeine or how caffeine affects chemicals in the brain.
- Coffee Blocks Adenosine. Adenosine is a naturally present hormone that makes you sleepy. This hormone controls your sleep-wake cycle. It increases during the awake hours and decreases while you sleep.
- Caffeine Can Add to Stress. Anyone with stress-induced insomnia knows that stress can keep us awake during the night. When you consume coffee, the stress hormone or cortisol levels increase in your body.
- You Have Built up Your Caffeine Tolerance. People who consume coffee can build a tolerance to caffeine. As coffee blocks the adenosine receptors, as a result, your body starts producing more adenosine receptors.
- It’s the Sugar, Not Coffee. Milk, coffee, and sugar together make a perfect cup of coffee. Some of you may like coffee sweetened with honey, whipped cream, or sugar.
Jan 22, 2024 · Although coffee can provide a quick pick-me-up, it is not an adequate substitute for sleep. Sleep deprivation can reduce alertness , slow down response times, and negatively affect thinking. Drinking more coffee in an effort to overcome tiredness might backfire.
Oct 25, 2024 · Why some people feel sleepy after drinking coffee. Regular caffeine consumption can lead to tolerance, reducing its effects on alertness and wakefulness. Two primary mechanisms may contribute to ...
When you're feeling your best, anything can happen. Get the help from Danger Coffee! Discover the energy, taste and high performance that come from Danger Coffee.
