Coffee has long been considered a drink that helps you wake up and recharge your batteries.
However, not everyone feels this effect.
For some people, a morning cup of coffee does not bring energy, and sometimes makes them feel even more tired. The reasons for this are rooted in physiology, genetics and lifestyle.
Caffeine is a natural stimulant that affects the central nervous system. It works by blocking adenosine, a substance that causes fatigue. When caffeine enters the body, activity levels increase and drowsiness decreases.
However, the speed and strength of caffeine's action are influenced by many factors, ranging from genetic characteristics to a person's health.
One of the main reasons why coffee does not have an invigorating effect is genetic predisposition. Each person has unique genes that are responsible for the speed of caffeine processing in the liver.
For those who metabolize caffeine more slowly, its effects may be less pronounced.
Instead of a surge of energy, people feel slightly tired or neutral. The opposite situation is typical for people with an accelerated metabolism, who process caffeine too quickly, not having time to show its stimulating properties.
Regular coffee consumption leads to addiction. The body begins to adapt, and over time, a standard dose of caffeine ceases to have a strong effect.
This is because the receptors that perceive caffeine become less sensitive.
Heavy coffee drinkers may need more and more of the drink to achieve a sense of vigour. In such cases, coffee ceases to invigorate, turning into a routine element of nutrition.
High stress levels and chronic fatigue reduce the effectiveness of caffeine. When the body is in a state of constant tension, energy reserves are depleted and stimulants stop working properly.
In such situations, coffee can even worsen the condition, causing nervousness, dizziness and irritability. Instead of feeling cheerful, a person plunges into a state of emotional exhaustion.
Hormonal levels have a significant impact on the effects of caffeine. The level of cortisol, the stress hormone, plays a key role.
In the morning hours, its concentration naturally increases, which makes additional stimulation unnecessary.
If you drink coffee when your cortisol levels are peaking, your body may not feel the energizing effect. In fact, the combination of caffeine and elevated stress hormones can cause unwanted side effects, including anxiety.
People who suffer from chronic sleep deprivation often experience a lack of invigorating effect from coffee. When very tired, the body has difficulty using caffeine to activate energy resources.
In addition, frequent coffee consumption with lack of sleep causes addiction. The drink becomes a necessity, but its effectiveness is significantly reduced.
Diet can affect the effects of coffee. For example, a lack of B vitamins, magnesium, or iron reduces the body's ability to respond to caffeine.
In addition, combining coffee with certain foods, such as fatty foods or sweets, can slow down its absorption. This results in the invigorating effect becoming less noticeable.
Individual health characteristics play an important role. Low blood pressure, slow metabolism or cardiovascular diseases can reduce the effect of coffee.
Some people's bodies perceive caffeine as an irritant, which leads to the opposite reaction - a feeling of apathy and fatigue.
