<p>Does sex impact sporting performance? What is antibiotic resistance? Should we give plastic trees the axe?</p><p>Dr Karl answers these questions and more on triple j Mornings with Lucy Smith.</p>

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Join Dr Karl Kruszelnicki, Lucy Smith and their scientific guests, with a bunch of curious triple j listeners for a weekly injection of science, myth-bashing and answers!

Flushing etiquette, growing pains and heat vs temperature

dr karl podcast

Dr Karl Podcast

Does sex impact sporting performance? What is antibiotic resistance? Should we give plastic trees the axe? Dr Karl answers these questions and more on triple j Mornings with Lucy Smith.

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