
A trend emerged on TikTok of people swinging their arms after receiving their COVID-19 vaccine. The trend claims that moving your arm around in circles can help reduce arm pain and soreness, which is a common side effect of the vaccine. According to some infectious disease specialists, this movement can increase blood flow to the arms, diffusing the vaccine away from the arm muscles and into the immune system. However, some scientists have dismissed this trend as a placebo effect, stating that there is no scientific evidence to support the claim.
Does swinging your arm after the vaccine help?
| Characteristics | Values |
|---|---|
| Effectiveness | Some sources claim that it helps ease the pain and reduce soreness. However, some scientists have said that this is probably just a "placebo effect". |
| Safety | It is considered harmless. |
| Mechanism | Swinging the arm is believed to increase blood flow to the arm, allowing inflammatory molecules to move away from the injection site. |
| Timing | It is recommended to start swinging the arm as soon as possible after the waiting period, when the vaccine is most concentrated in the arm. |
| Movement | It is suggested to swing the arm in a circle or small circles, resembling a windmill. Aggressive movements, such as a full Michael Phelps swing, should be avoided to prevent hypertension or accidental bumps. |
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What You'll Learn

The trend may have started on TikTok
The trend of swinging your arm after receiving a COVID-19 vaccine gained significant popularity on TikTok. Several TikTok users posted videos of themselves swinging their arms like windmills after getting vaccinated, often accompanied by captions such as "me right after bc I don't want a sore arm" or "just got my COVID-19 shot... you know what that means." The videos often featured the song ""Too Player" by Vinny West.
This trend was based on the belief that swinging the arm could increase blood flow, diffuse the vaccine away from the arm muscles, and reduce soreness and numbness in the arm, which is a common side effect of the COVID-19 vaccine. However, the effectiveness of this method in alleviating pain has been questioned by experts. While some infectious disease specialists supported the idea that swinging the arm could help distribute the vaccine into the immune system, others attributed any perceived pain relief to a placebo effect.
Scientists and medical professionals have provided mixed responses to the trend. Some, like Beate Kampmann, professor of paediatric infection and immunity and director of the Vaccine Centre at the London School of Hygiene & Tropical Medicine, stated that swinging the arm is "harmless, looks very silly, and won't do anything." Adam Finn, a professor of paediatrics at the University of Bristol, expressed a similar sentiment, suggesting that any benefit is likely due to a placebo effect rather than a physiological change.
Pharmaceutical companies have also commented on the trend. A spokesperson for AstraZeneca stated that they were "certainly not aware of it being helpful" in reducing pain after a vaccine. Meanwhile, Pfizer and Johnson & Johnson claimed that there wasn't sufficient scientific evidence for them to comment on the matter.
Despite the lack of scientific evidence and conflicting opinions, the trend continued to spread on TikTok, with many users partaking in the celebratory arm-swinging dance, even if only for the sake of following a viral trend.
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It's harmless, but may be a placebo
While there is some evidence to suggest that swinging your arm after a vaccine can help ease the pain, the overall effectiveness of this method is uncertain. Some scientists have dismissed it as a placebo effect.
Adam Finn, a professor of paediatrics at the University of Bristol and an honorary consultant at the Bristol Royal Hospital for Children, commented that he "doubts" the method is harmful or helpful beyond any placebo effect. Similarly, Beate Kampmann, a professor of paediatric infection and immunity and director of the Vaccine Centre at the London School of Hygiene & Tropical Medicine, stated that swinging one's arm is harmless, looks very silly and won't do anything.
Despite the scepticism from experts, some individuals have shared their positive experiences with this technique. Several people who tried swinging their arms in circles after receiving their COVID-19 vaccine reported feeling less stiffness and soreness in their arms.
According to infectious disease specialists, the theory behind this method is that by swinging your arm, you increase blood flow to the area, helping to diffuse the vaccine away from your arm muscles and into your immune system. It is recommended to start moving your arm in a gentle, circular motion as soon as possible after the mandatory waiting period following the injection, as this is when the vaccine is most concentrated in the arm.
While it may not be harmful to try this method, it is worth noting that there have been no known controlled trials studying the effect of swinging your arm on arm pain after a vaccine. Additionally, aggressive movements, such as the Michael Phelps-style swing, should be avoided as they could potentially cause hypertension if done repeatedly or result in accidentally hitting your arm against something, making the soreness worse.
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It's supposed to increase blood flow
Many people who have received the COVID-19 vaccine have reported experiencing arm pain for a few days after their injection. A trend that emerged on TikTok suggests that swinging your arms in a circle can help to alleviate this pain. The idea behind this trend is that moving your arm around increases blood flow to the area, encouraging inflammatory molecules to move away from the injection site.
According to infectious disease specialists, this movement can help to diffuse the vaccine away from your arm muscles and into your immune system. It is recommended to start moving your arm as soon as possible after the waiting period, as this is when the vaccine is most concentrated in your arm. However, it is important to note that the movement should be slow and gentle, as aggressive swinging could potentially cause hypertension or result in accidentally hitting your arm against something, leading to more soreness.
While some individuals have reported success with this method, there has been no controlled trial studying the effect of swinging your arm on vaccine-related arm pain. Some scientists have dismissed the trend as a placebo effect, arguing that it is unlikely to provide any real benefit. Nevertheless, as long as it is performed safely, swinging your arm is considered harmless and may provide some relief for those experiencing soreness after their COVID-19 vaccine.
It is always advisable to consult with a healthcare professional for advice on managing any vaccine side effects, and to follow their recommended guidelines for post-vaccination care.
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It's best done right after the waiting period
While there is no scientific evidence to support the claim that swinging your arm after getting the vaccine helps, it is believed to be a harmless practice. According to some infectious disease specialists, swinging your arm in a circle can help diffuse the vaccine away from your arm muscles and into your immune system. This is because moving your arm around allows blood to flow to that area, which encourages inflammatory molecules to move away from the injection site.
It is recommended to start moving your arm right after the waiting period, as that is when the vaccine is most concentrated in your arm. However, it is important to note that aggressive movements, such as the Michael Phelps-style swing, should be avoided as they could cause hypertension if done repeatedly. Instead, aim for slower movements, similar to an Arrested Development chicken dance, and remember to keep your elbow bent to avoid hitting anything around you.
While some people have reported success with this method, others believe that any positive effect is likely due to the placebo effect. It is always a good idea to consult with a healthcare professional to get their advice and recommendations for your specific situation.
Overall, while swinging your arm after the vaccine may not be harmful, there is no guarantee that it will effectively prevent or reduce soreness. It is always a good idea to follow the advice of medical professionals and take any necessary precautions to ensure your comfort and well-being after receiving the vaccine.
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It's not a Michael Phelps-style swing
While swinging your arm after getting the vaccine may help ease the pain, it is important to avoid an aggressive Michael Phelps-style swing. Dr. Abisola Olulade, a San Diego-based physician, warns against such vigorous movements, stating that they could lead to hypertension if performed repeatedly. Additionally, there is a risk of accidentally hitting your arm against something, which would only make it more sore.
So, what is the recommended way to swing your arm after the vaccine? Well, it's more about gentle, slow movements. Some people have described it as similar to the chicken dance, while others have compared it to windmilling or shaking their arms in small circles. The key is to avoid any abrupt or forceful motions that could potentially cause injury or worsen the soreness.
The idea behind this technique is to increase blood flow to the injected area, encouraging inflammatory molecules to move away from the injection site. This helps prevent the soreness from being concentrated in one area. It is suggested that you start these gentle movements as soon as possible after the mandatory waiting period following the vaccine, as this is when the vaccine is most concentrated in your arm.
While some people have found relief through this method, it is important to note that there have not been any known controlled trials studying the effectiveness of arm-swinging specifically for vaccine-related arm pain. Some scientists have attributed the perceived success of this method to a placebo effect. Nevertheless, if it helps alleviate discomfort without causing harm, there seems to be little harm in giving it a try under medical supervision.
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Frequently asked questions
Yes, according to infectious disease specialists, swinging your arm in a circle can help to increase blood flow to your arm, reducing soreness and encouraging inflammatory molecules to move away from the injection site.
It is recommended to start swinging your arm as soon as possible after your waiting period, as this is when the vaccine is most concentrated in your arm.
While swinging your arm is considered harmless, aggressive movements could cause hypertension if done repeatedly throughout the day, and you might accidentally hit your arm against something, making it more sore.











































