What is the main organ of the circulatory system

Ineed an essay 1200words about obezity ,introduction, main causes, conclusion

If a person has a bad pain in their back, specifically lower back a bit above the hip, what should they do besides going to the doctor? what remedies could they use?

One hospital ceo insists on including performance data in the hospital’s annual report. “we do very well on most measures, except for one or two, but we put those in anyway,” she says. “we want to hold ourselves accountable.” does this practice demonstrate effective or ineffective leadership?