Claudia Willen is a New York-based associate editor at Instyle. She has over five years of experience in writing, editing, and content strategy and previously held positions at Business Insider and ...

Building muscle requires resistance training with moderate to heavy weights and eating 1.4 to 2 grams of protein per kilogram of body weight daily. Your body builds new muscle when it deposits more ...

You can combine low impact cardio exercises like speed skaters, squats with punches, and lateral shuffles into a 20-minute circuit to help improve cardiovascular fitness, strength, and balance.