Define Half life and what it is.

Which one of the following reasons is not typically why athletes strive for lower body weight and lower body fat?

David, an aspiring baseball player, was struck on the left side of his face with a fastball pitch. he was not wearing a safety helmet. his zygomatic arch was crushed, as well as parts of the temporal bone. following the accident and reconstructive surgery, he noted that his left lower eyelid was still drooping and the corner of his mouth sagged. what nerve damage did he sustain?

Which of these should be re portable health diseases to protect public health? a- obesity b- measles c- diabetes d-lung cancer