Our immune systems have improved over the years due to improvements in the medical fields. I also believe your brain has a bigger effect on how sick you actually allow yourself to become
The answer is 20 minutes a day in order to have an effective cardio exercise.
Answer:
I would say option 1
Explanation:
*READ* because, they look the exact same. And when they look the exact same I always do the first one. Hope This Helps!