The human mind is capable of triggering many effects and symptoms in our body, and a study carried out by researchers at Beth Israel Deaconess Medical Center (BIDMC) in Boston shows just that.
According to a recent study, which involved 45,000 participants, concluded that 60% of adverse reactions to the vaccine are psychological. According to the researchers, although feelings of discomfort such as headache, fatigue or nausea are real in people who have had the vaccine, most of the time the symptoms are just “constructions” of our imagination.
+ Nocebo accounts for 76% of Covid vaccine side effects
In the scientific community this effect is known as the “nocebo effect”, corresponding to negative side effects that occur because the patient expects that reaction.
Of the 45,380 patients who took part in the study, 22,802 received a real vaccine and the remaining 22,578 patients received placebo (harmless substance with no therapeutic value). None of the patients knew if they were going to receive the real vaccine or the placebo dose.
Adverse reactions to vaccines are usually mild and disappear within a few days after vaccination. May arise:
- Pain or swelling at the injection site
- Fatigue
- Headache
- Muscle aches
- Joint pain or fever
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