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If we had no calorie restriction why would we have evolved.
by mywacaday 4y ago
If we had no calorie restriction why would we have evolved.
- rNULLED 4y agounderrated perspective
- isaacgreyed 4y agoSomething else would end up scarcer
- ProjectArcturis 4y agoIn an energy-rich environment, evolution should select for faster and faster reproductive rates.
- shard 4y agoPerhaps so, but humans are reproducing later and having fewer offspring, so there are more variables than just energy.
- bearmode 4y agoEnvironmental stresses are well-known to cause reproduction rates to plummet. That can be because of a lack of available food, but it can really be any sort of stress.
- lagadu 4y agoThat's true, we evolved to adapt to calorie scarcity but our environment has changed: calories are now abundant but our system is still optimized for scarcity despite that constraint no longer existing. I'm sure in a few thousand years that'll go away (possibly faster, as we get better at manipulating our own biology) but the status quo is that we're poorly adapted to our environments, energy-wise.
- sebastianconcpt 4y agoExcellent point. But note that calories scarcity is a simplistic model. What I'm trying to show with what I was saying, is that there are stocks of scarce molecules imposing performance limits too.