Until the research catches up with the hype, you don’t need to quintuple your intake of five grams of creatine daily. That said, you may want to double it. “I personally take 10 grams a day, as that dose likely checks all the boxes for muscle, bone, and brain,” Candow says.

The "winter arc" or "great lock-in" is a TikTok trend encouraging focused personal development during the colder months. It's about programming your mind for a sprint of effort in areas like fitness, finances, or career. The goal is to feel like the best version of yourself by the new year, making progress through the end of the year.