In TODAY.com's Expert Tip of the Day, dietitian Natalie Rizzo shares her favorite post-workout snack to help the body recover and rebuild muscle.

The specific moves you pick for each pair matter. In a superset, your two paired exercises work opposing muscle groups, Watts explains. For example, you might start with biceps curls and then move straight into triceps kickbacks to hit the back of your upper arm while the front of it recovers.

Contrast piping is currently a huge trend in exercise clothing and this set proves why. It includes a v-neck sports bra with adjustable straps and high-waisted scrunch leggings that are made from a super stretchy ribbed fabric that stays in place.

Every so often, a new type of workout seemingly takes the fitness world by storm. The latest in this long line of buzzy fitness fads: the Norwegian 4x4 workout, a high-intensity interval training (HIIT) method that’s become the exercise trend du jour.

Gains ahead.

Emily Ratajkowski is keeping things sleek and minimal in a new carousel highlighting her latest activewear look. The model shared a series of photos captioned, “Uniform @oneractive.” She showed off a streamlined workout fit that blends performance style with her signature bold glamor.

Use this simple post-workout method to leave the gym feeling calm and clear-headed.

You're already past the hardest part.