After drinking coffee, why does your body become weak?

Drinking coffee is a routine for some people to start the day. Coffee can get rid of drowsiness as well as increase enthusiasm and concentration. Unfortunately, not everyone feels fresher and more alert after drinking coffee. Drinking coffee actually makes some people weaker and more tired than before. Why is that, huh? Check out the following reviews.

The body is weak after drinking coffee, what is the reason?

Coffee contains caffeine, which is a stimulant that can increase energy so that you can refocus. Unfortunately, not everyone feels the same effect. There are some people who do not feel any bad effects after drinking a few cups of coffee, others feel tired after drinking just one cup.

Reporting from Healthline, drinking coffee does not immediately make the body weak. There are several body reactions to caffeine which make energy decrease and eventually make the body tired, such as:

1. Caffeine blocks adenosine

When you are awake, a chemical called adenosine collects around the brain. These chemicals play a role in regulating the wake and sleep cycle. Usually, during the day, adenosine levels will increase so that brain activity slows down. That's why you become energized, unfocused, and sleepy during the day. After you sleep, adenosine levels will decrease on their own.

When you drink coffee, caffeine moves with the blood and circulates around the brain. This causes a reaction between caffeine and adenosine. Initially caffeine will counteract adenosine and prevent the body from becoming weak, but the effect does not last long.

Within a few hours of drinking coffee, the effects of caffeine will disappear and the adenosine, which continues to be produced by the brain, will dominate again, even in greater amounts because you are not sleeping. Yes, coffee actually can't reduce adenosine production. The caffeine in coffee is only able to block adenosine from entering special receptors in the brain. Again, adenosine production will only decrease when you sleep.

Then, the more caffeine you consume, your wake-up and sleep cycle can be disturbed. You will most likely have trouble sleeping. Over time, your body will feel very tired because it doesn't get enough time to rest.

2. You go back and forth to the bathroom

The caffeine contained in coffee is a diuretic, which means it encourages the body to produce a lot of urine. This takes you back and forth to the bathroom. You also run the risk of becoming dehydrated.

As urine continues to be produced, the blood will lose fluids. This affects the vascular system in the heart. As a result, the heart rate will be faster and blood pressure will decrease. Over time, the body will become more tired as it continues to work hard. For this reason, be aware of the appearance of symptoms of dehydration such as weakness, headaches, and dark urine if you drink coffee frequently.

Caffeine also causes vasoconstriction, which is the constriction of blood vessels and affects blood flow. This is related to the symptoms of headaches in people who like to drink coffee.

3. Coffee contains added sugar

Coffee often contains added sugar. When you drink coffee, your body processes sugar faster than caffeine. This process makes your energy suddenly replenished.

However, afterwards you may experience a pretty drastic energy decline, usually after 90 minutes of sugar being consumed together with coffee. Finally, the energy slump leaves your body sluggish and weaker than before.

4. Caffeine causes fatigue of the adrenal glands

The adrenal glands sit on top of the kidneys and function to produce many hormones that regulate energy, mood and overall health. When you drink coffee, caffeine triggers the adrenal glands to respond and produces hormones, one of which is cortisol.

The more caffeine consumed, it means that the adrenal glands continue to be active and eventually cause adrenal gland fatigue. In addition, the production of the hormone cortisol can make it difficult for you to sleep at night and reduce your stamina the next day.

If you often feel the symptoms of fatigue and weakness, try to pay attention to your coffee drinking habits. Consider reducing your coffee intake and drinking in moderation. However, do not reduce coffee intake suddenly as it can cause headaches. The body needs time to adapt to the substances that normally enter the body.