The Covid pandemic has brought to light the many factors known to reduce the effectiveness of a vaccine.
The main ones are age and gender, overweight, diabetes, taking immunosuppressive treatments after a transplant.
According to a study published Monday in the journal
Current Biology
, sleep could also be a variable to consider.
The French and American researchers examined the scientific literature on the subject, and found a
“robust association”
between short nights (less than six hours) and a reduction in the amount of antibodies produced by the body in response to vaccination. .
The phenomenon is more marked in men.
The scientists collated data from general population follow-ups and experimental studies, in which participants were voluntarily deprived of sleep in the nights before or after the injection.
The tests were carried out with vaccines against the flu, as well as against hepatitis A…
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