Doing 30 minutes of cardiovascular exercise a day is beneficial for several reasons. It reduces the risk of cardiovascular disease, improves sleep, brain and mental health. Reaching this threshold has also been considered effective for losing weight. Even so, we suggest that you talk to professionals before making any changes to your training plan.
If you're doing 30-minute workouts at an intense pace, it's important to incorporate rest days into your exercise routine to reduce the risk of injury. Effective cardiovascular exercise maintained at a high pace can burn hundreds of calories in that short space of time, while something more moderate, such as walking, will burn less.