Getting in shape for the first time — or for the first time in a while — can feel daunting. After all, some of the most popular workouts (looking at you, boot camps) aren’t exactly beginner-friendly. You know cardio is key, whatever your goals — whether to lose weight or simply be healthier — but building your endurance can take time and patience. Still, with a few simple steps, you can be on the road to making it a regular part of your routine sooner than you think. These tips from trainers can help you ease your body into exercise and find an activity you enjoy enough to stick with it.