Study finds that being in a good mood increases immunity against the flu

For many this may seem impossible, but the flu does not have to mess up your day to day life, you just need to be happy. A new study by a team of health experts at the University of Nottingham in the United Kingdom found evidence that being in a good mood on flu days may increase its protective effect.

The study, published in the journal Brain , Behavior and Immunity, is the first to examine various psychological and behavioral factors that have been shown to affect how well the vaccines work. The researchers sought to understand which factor, or combination of factors, has the greatest impact on the ability of vaccination to protect against disease.

For analysis, the team studied the effectiveness of influenza vaccines in a group of 138 elderly people, positive and negative mood, physical activity, diet and sleep routines over a six-week period. So the researchers questioned people about how happy they were in the six weeks around their injection and on the day itself. They then measured the level of antibodies developed by the immune system of the participants, over a period of 4 weeks and 16 weeks after vaccination.

The results showed that of all factors measured, only positive mood during observation of 6 weeks predicted the proper functioning of the vaccine - with good mood associated with higher levels of antibodies. Researchers have found that being in the right state of mind on the day of injection can cause the body to produce up to 14% more antibodies, increasing protection.

"Vaccines are an incredibly effective way to reduce the likelihood of contracting infectious diseases , but the Achilles' heel is that its ability to protect against diseases is affected by the functioning of an individual's immune system, "said Professor Kavita Vedhara of the university's primary care division. A number of psychological and behavioral factors, such as stress, physical activity and diet, influence the functioning of the immune system and these factors have also been shown to influence how well vaccines protect against disease, "he added. comedy movie or doing yoga are activities that can boost people's mood and immune response at the same time. However, they say it is unclear whether these "mood-enhancing interventions" can be brought by doctors given the short periods of vaccination consultations. "We hope that similar effects may be true for all vaccines, especially in people with less effective immunological systems such as the elderly.This is not to say that the positive climate may be the only way to promote the effectiveness of vaccines, "said lead author Kieran Ayling.

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