Psychologists use a systematic method in research in order to eliminate subjectivity and allow for consistency across studies. This is to ensure that data is tested and recorded in the most objective way possible as well as ensure that psychologists are defining and measuring psychological concepts and behaviors in the same way.
The knee is were most injures happen. ways to prevent them is to wear knee pads and such so if you trip and fall.
if you are women the answer would be fertility problems i hope this helped have a great day
Protein chicken. grains rice. dairy yogurt. fruits apples. veggies carrots