Robert F. Kennedy Jr., an environmental lawyer and anti-vaccination campaigner, revealed that his cognitive and memory issues were due to a worm that had eaten part of his brain and subsequently died. Initially misdiagnosed as a brain tumor, further examination revealed the dark spot on his brain scans was a dead parasite. Additionally, Kennedy suffers from mercury poisoning, attributed to excessive tuna consumption. Now running for president with the Justice Party, Kennedy is contesting the election against incumbents President Joe Biden and Donald Trump. Despite these health challenges, he emphasizes his youth and vitality in his campaign.