Call it a sign of the times: walking has emerged as the workout of 2024. From Hot Girl Walks to under-desk treadmills, walking is trending—and for good reason. Walking is the ultimate low-effort, high-reward exercise. It’s simple, doesn’t require a gym, and delivers major health benefits: better heart health, clearer thinking, reduced stress, and effective weight management. For busy, stressed professionals, it’s a simple, effective solution when other forms of workouts feel too overwhelming.

Exercise is necessary for health, especially for men and women over 40 who want to improve cardiovascular fitness, build strength, and maintain liveliness. However, understanding target heart rate zones can help make your workouts more efficient and effective, especially if you're juggling a busy, stressed life. This guide breaks down heart rate zones, how stress impacts your heart rate, and what you need to know to maximize your workout time, even if it’s limited.

One of the most common misconceptions is that effective workouts require hours at the gym. In reality, high-quality, effective workouts can be completed in as little as 30 minutes. A focused, well-structured workout routine that targets major muscle groups and elevates your heart rate can deliver substantial health benefits, even if you're pressed for time.