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The Adrenaline and its Effects

Adrenaline, also called epinephrine, is a substance produced in the body by the adrenal glands. It is a hormone, and also a neurotransmitter, which is released mainly in situations of stress, danger, tension, excitement, and helps the body to prepare and be alert. The adrenaline activates the organism and makes the person have a great feeling of vitality.

In sports, adrenaline is an internal stimulant that helps boost the athlete’s qualities; so that releasing adrenaline is beneficial, since it can improve the athlete’s performance, because the adrenaline predisposes the body to react quickly and prepares it to get the best functioning of muscles and the whole body.    

Some effects of adrenaline are the following:

  • Increases the heart rate, which causes more oxygen to reach the muscles and therefore they can make greater efforts.
  • Decomposes the glycogen, which is the energy stored mainly in the liver and muscles, and is used in the most physically demanding situations.
  • Accelerates the rhythm of breathing, thus the blood is oxygenated better and the physical performance is improved.
  • Dilates the blood vessels directly linked to the vital organs to protect them and prevent their rupture in tense situations.
  • Being a neurotransmitter, it facilitates the exchange of information between nerve cells.
  • Helps fight depression, because the release of adrenaline stimulates the production of dopamine which increases the feeling of well-being.

In medicine, adrenaline is generally used in the case of cardiorespiratory arrest, as well as to treat many health problems such as serious allergic reactions, acute cases of asthma, or in case of a severe decrease in blood pressure.

However, excess adrenaline has negative consequences for the body: hypertension, tachycardia, headache, anxiety, nausea, dizziness, insomnia, temporary vision problems, irritability, heart problems, and increased glucose levels. Therefore, being all day too active can be very harmful; for this reason, the body needs to rest and sleep enough.

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