Former physical fitness trainer Sherwin Tang was conducting a workout session at a gym in 2015 when all of a sudden, he had trouble speaking in a coherent manner.
Thinking he was tired, he decided to drive home to rest, but along the way, he felt a sudden weakness in the right side of his body.
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A version of this article appeared in the print edition of The Straits Times on October 26, 2020, with the headline Living with lost words. Subscribe