Why is ones body tired after swimming in a pool for an hour and a half this is a health question

In the city of newark, a young man named annoying was admitted to the e.r. he and his friends were trying to imitate the movie project x. his friends say he started twitching and having muscle spasms which progressed until he was stiff as a board. in his pockets, he had unmarked dark yellow tablets which dark flecks. analysis of the tablets showed them to contain a mixture of ecstasy and strychnine. ecstasy would not cause this clinical picture, but strychnine would. explain why?

All of the following are potential risks of leaving a small child unattended in a car, except: a. hypothermia b. carbon monoxide poisoning c. car theft with child inside d. lead poisoning

What are hormones? a. they are minerals needed for proper bone formation. b. they are the parts of the body targeted by endocrine glands. c. they are substances needed for muscle and nerve activity. d. they are substances released by endocrine glands.