There is a free promo running for my book on prolonged fasting. This goes during the whole day of February 8, 2018, and it should be available on all Amazon websites.
What's Periodic Fasting all about? Well, here are a couple of topics:
- personal experiments with prolonged fasting
- fasting in the animal kingdom (interesting data on penguins and bears)
- fasting experiments in history (Luigi Cornaro, Upton Sinclair, etc)
- early modern research on fasting - The 1960s and George Cahill's work
- contemporary research on prolonged fasting
- and more.
If this seems appealing, following the link below to get your free Kindle copy. If you do, I'd appreciate a short and honest review on its official (amazon.com) page because this helps me a lot as an author.
My Book is Free Kindle Today - Periodic Fasting [Amazon Promo]
To stay in touch with me, follow 
Cristi Vlad Self-Experimenter and Author