Welcome to Startups Weekly — your weekly recap of everything you can’t miss from the world of startups. Want it in your inbox every Friday? Sign up here. Several startups announced new rounds this week without disclosing their valuation. This doesn’t mean that these were down rounds, but rather it …

How about Jazz Chisholm Jr. scoring the go-ahead run in Game 1 of the World Series? Chisholm entered the night just 5-for-34 with 11 strikeouts in the postseason. Earlier today, Yankees manager Aaron Boone was answering questions about Chisholm’s struggles. “What gives me confidence is how good and talented he …

When you’re finished brushing, do you rinse out your mouth? It’s an action that’s likely ingrained in you since you were a kid. That’s what so many of our parents taught us, after all. You’ve probably also spent your entire adult life doing the same thing, but that’s actually not …