Staying hydrated seems simple enough—drink water when you’re thirsty and stop when you feel like you’re done, right ... Take in electrolytes in addition to water if you’re running for longer than 60 ...

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It starts with a bottle. A cobalt blue one, brought to the table like a jewel. “This,” Khalil Lalani says, holding it like a secret too good to keep. “This one, people remember. They take it home.