How ByteDance Made China’s Most Popular AI Chatbot

When Chinese AI startup DeepSeek became a global sensation in January, it not only shocked Silicon Valley but also startled ByteDance, TikTok’s parent company. The Chinese tech giant had already launched Doubao, its own flagship AI assistant app with tens of millions of users. But when DeepSeek became the best-known Chinese AI company overnight, no…

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Ikea’s New Blow-Up Chair Was Tested by Cats

A blow-up chair? Ikea has been here before. It attempted to make inflatable furniture in the mid-1990s, when designer Jan Dranger came to the Swedish company with a revolutionary idea to solve one of its biggest challenges: how to squish sofas into its preferred flat-pack format, simplifying transport and cutting costs. It sounded like the…

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10 Tips to Get the Most Out of a Tank of Gas

3. Minimize travel. If you can delay errands or other activities, you’ll preserve the gas that you purchased and reduce overall consumption for the region, helping in some small way to reduce gas scarcity.  4. Obey speed limits. When you drive, follow the speed limits and drive smoothly. Your driving habits can play a significant…

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The Best Over-the-Counter Sleep Aids (2025), Tested and Reviewed

Compare Our Picks Others Tested These were effective, but not as consistently so as the above picks. I’d still encourage others to try since bodies react differently to the active ingredients in these over-the-counter sleep aids. Rebalance Dream Sleep Mints (Melatonin-Free; 31-Pack) for $46: These melatonin-free mints are designed to slowly dissolve, with natural sleep…

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How to Keep Your Teeth Healthy for Life

You can achieve excellent oral hygiene with either a manual or an electric toothbrush, according to Tricia Quartey, DMD, a dentist in Brooklyn, N.Y., and a spokesperson for the American Dental Association. Your technique matters more. “It’s in the brusher, not the toothbrush,” she says. But if you have dexterity limitations, an electric toothbrush may…

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