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Science behind the IronMan

How does one best prepare for completing an iron man triathlon (3.8km swim, 180km bike, 42km run) or other endurance events?

Herbal tinctures - Helping or harming my gut microbiome?

I have recently begun seeing a naturopath who specializes in the gut microbiome, and she has given me herbal tinctures to take twice daily. While I have seen positive feedback online about the benefits of herbal tinctures for the gut which contain ethyl alcohol. I recently heard in one of your podcasts that alcohol can kill both good and bad gut bacteria. This has left me feeling unsure about whether these herbal tinctures are ultimately helping or harming my gut microbiome. I would really appreciate it if you could clarify this for me. And thank you again for your podcast, I love listening to them!

Swimming in chlorinated pools and testosterone.

Does swimming in a swimming pool with chlorine affect testosterone and if it does is there any way to prevent the side effects?

Type 1 Diabetes - is there a cure coming?

Lots of research happening around the world. Is anyone close to finding a cure as opposed to more technology to manage the condition? Is there an exponential increase in diagnosis of the condition in both children and adults?

Reverse Early-onset Osteoporosis

I am 30 years old that have been diagnosed with Osteoporosis, likely caused by thyroids. I am researching mechanisms and food that can help strengthen the bones and optimise my thyroids and hormone balance. I heard many times in your podcast that weight training helps strengthen the bones but, can I reverse osteoporosis? I get heaps of sunlight in the morning, and I hike and cycle to commute. I've recently started a program for weight resistance training to strengthen the bones. Thanks a lot. P.s. I love your podcast and I am a big fan of yours! Thanks for making the world a better place by sharing your knowledge.