Ask the nutritionist: “I am healthy but on the skinny side. How do I gain weight?”

Reading Time: 2 minutes If you have a low body weight and wish to gain weight for health or sports-related reasons, here’s how to do it.

FitnessU: Chest and back exercises for posture, balance, and strength

Reading Time: 2 minutes Add these chest and back exercises to your workout to avoid rounded shoulders, improve your posture, and create upper body balance.

Ask the trainer: “What are the best exercises to do when you have a knee injury?”

Reading Time: 2 minutes Our trainer walks you through two strengthening exercises that support the muscles around the knee and can help you recover after an injury.

FitnessU: Pyramid training

Reading Time: 3 minutes Our fitness trainer demonstrates how to perform various moves to create a customized pyramid workout.

Trending diets: What they are, why they don’t always work, and what to try instead

Reading Time: 11 minutes Discover what the evidence says about trending diets, and get some real-life tips for making healthy eating less confusing and more convenient.