Push-ups work your chest, shoulders, triceps, and core, says ACE-certified trainer Jennifer Nagel. "Push ups are forever the most humbling thing. It doesn't matter how strong I am," Nicolas says. "They're key to my upper body, not just strength, but wellbeing — building that stability and coordination."
- Start in a plank position with your arms and legs straight, shoulders above your wrists.
- Take a breath in, and as you inhale, bend your elbows out to the sides and lower your chest toward the ground. Stop as soon as your shoulders are in line with your elbows. Exhale to straighten the arms. This counts as one rep.
- To modify, do this exercise with your knees on the floor.
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