[Jensen’s Inequality & Convexity] - if there’s a nonlinear relationship between an input (calories) & an output (effect), if we look at the output for two different inputs, the average of the outputs is not equal to what we would find for the output from the average of the inputs
Is there's a 'sweetspot' for neurogenesis from Fasting?
This study was every other day fasting. Is there a better (whilst still adherable) way. Would there be benefits from 18/6 routine? IS there any additional effect from reduced total calories -if so, how much?
Many questions
Weighted effects of Fasting.
Neurogenesis is just one of a constellation of effects over different timelines.
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Aging decreases the ability to deal with variation - also the ability to generate variation; the two are intrinsically related. They are two sides of the same coin.
The fragility of the coffee cup is fixed whereas a 20yr old can cope with a jump...
...from 20ft, but at 70yrs cannot cope with a jump from 10ft. Fragility in increasing.
The aging body is like a badly run business, it can't adapt to environmental challenges, randomness, and variation.
The body no longer has the system to deal with it; more precisely the system is working within a reduced range, it has degraded.
This is why as one ages, to slow down the downward spiral, it is *essential* to keep working the 'tails', the extremes...
The single most important quality to retain is the ability to generate and tolerate extremes. If all you do is “take it easy”, eventually all you’ll be able to do is take it easy.
1 Hyper-palatable food
2 Too abundant - all the time
3 Don't need to exercise to get it
Obesity will never be resolved in this environment of abundance. Humans are hardwired to expend as little energy as possible to get food.
This is why exercise is hard for many people. Expending energy for no reason is the opposite of how we evolved. A fundamental driver of human activity has been taken out of the equation by human ingenuity
Ease of access to food allows us to eat as much as we like, whenever we like. We have no environmental constraints. We’ve got what we wished for – easy calories for less and less effort (supermarkets, apps, home deliveries,) and little danger in getting it.
As I approach 60, the MAIN thing I've learnt which separates the long-term fit & healthy from the rest is their complete life is fit & healthy lifestyle; i.e they don't have fitness windows in an obesogenic lifestyle.
They aren't slobs who go to the gym. They aren't sedentary people who go for a jog 3 x a week. They don't lose weight for a beach holiday or wedding. They don't eat badly then 'fast' to lose weight. They don't drink smoothies for breakfast because they were told it's healthy.
Over 4 decades I've seen the one's who 'try' but fail longterm in staying fit, lean and healthy. They are always the individuals who insert fitness windows into their obesogenic/sedentary lives rather than a total change to a fit and healthy lifestyle.