Sven Yrvindvideo
Parkinson ... or Not ???
March 19, 2026 · 6 min · 25K views
What this video covers
Sven Yrvind, currently building a cruiser, addresses public speculation regarding his health and physical tremors.▶ 0:02 He clarifies that his hand tremors are caused by essential tremor, which presents at a frequency of 6–10 Hz, rather than Parkinson’s disease, which typically manifests at 4–6 Hz.▶ 0:53 While these tremors complicate fine motor tasks like mixing epoxy or handling small screws, they do not interfere with his ability to sail or perform heavy construction work.▶ 1:43 Yrvind, who turns 87 in April, continues to work daily on his vessel.▶ 2:57 He also details his current construction progress, specifically the application of epoxy laminate and paint.▶ 3:30 He describes a structural anchoring system for the boat, noting that he first developed this method in 1976 while working with Dick Newick at Martha's Vineyard.▶ 4:30 The current laminate setup, which involves pressure applied from the outside and reinforced from within on three sides, remains secure and free of rattling.▶ 5:35
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