More than a male hormone
Women in love have more
It can shrink your belly
Making money affects it
Too much can shrivel testicles
Sports fans get a winner's boost
Fat can lower testosterone
Hands reveal hormone secrets
It's hard to measure accurately
It's not the fountain of youth
Taking it doesn't cause prostate cancer
Low levels are linked to sleep apnea
It may hurt men's hearts
Too much may kill brain cells
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