Mental Health Issues Dampen Efficacy of COVID-19 Vaccines

Mental health issues like depression, stress, and loneliness can weaken the body's immune system and lower the effectiveness of the new COVID-19 vaccines.

Mental health issues like depression, stress, and loneliness can weaken the body's immune system and lower the effectiveness of the new COVID-19 vaccines, aid new report accepted for publication in Perspectives on Psychological Science.

Fortunately, it may be possible to reduce these negative effects with simple steps like exercise and sleep.

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‘Depression and stress could dampen the efficacy of COVID-19 vaccines.’

Vaccines are among the safest and most effective advances in medical history, protecting society from a wide range of otherwise devastating diseases, including smallpox and polio. The key to their success, however, is ensuring that a critical percentage of the population is effectively vaccinated to achieve so-called herd immunity.

Even though rigorous testing has shown that the COVID-19 vaccines approved for distribution in the United States are highly effective at producing a robust immune response, not everyone will immediately gain their full benefit. Environmental factors, as well as an individual's genetics and physical and mental health, can weaken the body's immune system, slowing the response to a vaccine.

This is particularly troubling as the novel coronavirus continues to rage across the world, trigging a concurrent mental health crisis as people deal with isolation, economic stressors, and uncertainty about the future. These challenges are the same factors that have been previously shown to weaken vaccine efficacy, particularly among the elderly.

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"In addition to the physical toll of COVID-19, the pandemic has an equally troubling mental health component, causing anxiety and depression, among many other related problems. Emotional stressors like these can affect a person's immune system, impairing their ability to ward off infections," said Annelise Madison, a researcher at The Ohio State University and lead author on the paper. "Our new study sheds light on vaccine efficacy and how health behaviors and emotional stressors can alter the body's ability to develop an immune response. The trouble is that the pandemic in and of itself could be amplifying these risk factors."

Vaccines work by challenging the immune system. Within hours of a vaccination, there is an innate, general immune response on the cellular level as the body begins to recognize a potential biological threat. This frontline response by the immune system is eventually aided by the production of antibodies, which target specific pathogens. It is the continued production of antibodies that helps to determine how effective a vaccine is at conferring long-term protection.

Quiz on Stress

Introduction

Stress has become one of the major health concerns in the modern world, but it is still difficult to define. Stress is a normal physical response when faced with a challenge, and in small doses, stress can motivate us and drive us to better performance. But stress overload is typically described as a negative concept that can have an impact on a person’s mental and physical well-being ().

There are 10 questions on ‘Stress’ in this quiz that will explore the depth of your knowledge and provide answers to the following:

Symptoms of stress ()
Stress hormone ()
Complication of chronic stress ()
Phobia ()
Post-Traumatic Stress Disorder ()

"In our research, we focus most heavily on the antibody response, though it is just one facet of the adaptive immune system's response," said Janice Kiecolt-Glaser, director of the Institute for Behavioral Medicine Research at The Ohio State University and senior author on the paper.

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The good news, according to the researchers, is that the COVID-19 vaccines already in circulation are approximately 95% effective. Even so, these psychological and behavioral factors can lengthen the amount of time it takes to develop immunity and can shorten the duration of immunity.

"The thing that excites me is that some of these factors are modifiable," said Kiecolt-Glaser. "It's possible to do some simple things to maximize the vaccine's initial effectiveness."

Based on prior research, one strategy the researchers suggest is to engage in vigorous exercise and get a good night's sleep in the 24 hours before vaccination so that your immune system is operating at peak performance. This may help ensure that the best and strongest immune response happens as quickly as possible.

"Prior research suggests that psychological and behavioral interventions can improve vaccine responsiveness. Even shorter-term interventions can be effective," said Madison. "Therefore, now is the time to identify those at risk for a poor immune response and intervene on these risk factors."

Source-Eurekalert