' m not sure how much import costs would be if you ' re not from America . I don ' t have one myself as it doesnt support 4 k , yet . <| sep |> lol , i played it 7 times and got 0 flash cards . Thank you so much ea ! <| sep |> Given how much hot water parts of Europe are going through , it might only be a short time when it ' ll begin to scald everyone . Either side . <| sep |> As a very simple example , if you casually walk your miles , that ' s not an efficient workout . Doesn ' t do much . Also , if you ' re running so slowly that your running form breaks down , you are running too slow . The human body has several different systems that make energy available . For longer distance running , aerobic endurance is most important , as that is where the vast bulk of the energy is coming from during a longer run . The higher your aerobic capacity , the longer run can run at a good speed . The easy runs are the main workouts to improve aerobic capacity . The easy runs then do double duty as recovery . Thus easy runs have a very wide range at the slower end with a focus on recovery , and at the faster end with a focus on improving aerobic capacity . When extra recovery is necessary , such as after a full marathon , or even the day after an extra hard workout , the easy runs should be slower to focus on the recovery aspect . Some then distinguish between easy runs and recovery runs , but those terms get mixed up frequently . When running the easy runs too fast , several things happen the workout isn ' t that targeted on the aerobic capacity anymore , the recovery is messed up , and there is overall too much stress on the body from the total workload , especially when working out five or more times per week . Injuries become more likely , and faster workouts might be impacted by fatigue . When running the easy runs too slow , the workout will give fewer fitness benefits , but recovery is improved , and the risk of injury is reduced . Running the easy runs too slow is much less of a problem than running them too fast . Now , what do I consider too slow . If you are not in recovery from a race , an injury , or some hard workout , and after 45 minutes of an easy run your heart rate is still below 55 % of your maximum heart rate , then you probably were running too slow . Even then , going out too slow on an easy run can be managed . You can always run the last miles a little bit less slowly but still within easy range , or add some strides .