D. Herniated disks. It's always smart to be careful when playing sports or even just doing day to day activities. Those hurt!
Answer:
The exercises of knee are done by following ways
1). Pull and bend the legs. Before doing the exercise for the knees, we should first do jogging. Then we should pull and bend our legs, stand on left leg and pull right feet to hip. For this, we should pull the right feet with right hand. This should be done turn by turn with both legs.
2). Stretch the legs. Stand in a row and follow the count of the instructor.
Count 1. Put the right leg ahead and bend it.
Count 2. Put the hand on the right knee.
Count 3. Stretch the left leg hard.
Count 4. Stand at ease.
Change the legs and do in the same way for 4-5 times.
1. eating healthy foods.
2. getting enough sleep.
3. getting enough exercise
4. managing stress
5. washing your hands consistently.
All of those things helps your immune system by strengthening it or by keeping germs away which intern helps prevent you from getting sick.
I hope this helps. Let know if anything is unclear.
