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Emily Capodilupo, WHOOP VP of Data Science and Research, returns to the WHOOP Podcast to detail our latest COVID-19 vaccine research. We've found that younger people are more likely to be affected by the vaccine than older people. Additionally,\\xa0 you should expect to feel more rundown by the second dose than the first, but any vaccine aftereffects are short lived and only last a day or two. Emily and Will Ahmed detail our research (0:55), the difference between mRNA and viral vector vaccines (4:19),\\xa0 key takeaways (6:30), the second Pfizer and Moderna doses (8:30),\\xa0 the most common reported symptom (12:10), how the vaccines affect sleep (12:40), why the vaccines are hitting young people harder (13:41), how quickly people bounce back from symptoms (17:37),\\xa0 why we might need additional COVID immunizations (20:54), and how to best prepare for your shot (24:30).