What is the most common cause of death on the playing field in American h.s./college football? (poll 7365115)

What is the most common cause of death on the playing field in American h.s./college football?

Exertional Heat Illness

Brain Injury

Asthmatic crisis

Cardiac Failure

Struck by lightning

Sickle Cell Trait

Vote View Results

See this poll on: https://poll.fm/7365115/embed