When is blood transfusion needed for low hemoglobin

How will health most likely be affected if you follow the recommended guidelines for sleep rest and physical activity

Select two risk factors for self-harming behavior. a. having high self-esteem b being a teenager or young adult c. being female d. having never abused drugs or alcohol i know its going to be something funny and i'm gonna feel dumb asking it but its for my final test of the semester

What percent of body heat can be lost through the head