While fasting is currently all the rage for its autophagy-inducing, gut healing and detoxifying actions, it has actually been a part of all major religions for hundreds of years.

In East Asia, it was common for monks to fast as a way to achieve mental clarity and religious enlightenment. But I think it's important to note who was doing that fasting: Men.

Wondering why synthetic spermidine is cheaper than the pure, food-derived form? In this instance, the phrase "you get what you pay for" certainly rings true. 

Some epigenetic changes are predictable - for example, many of the changes associated with lifestyle factors. But some epigenetic changes are random and associated with many diseases and risk factors when thresholds are reached.