Very true. Might be a chunk of the answer. But a crazy amount of things have changed, and you're naming what we have researched a fair bit - finding some effect

Very true. Might be a chunk of the answer. But a crazy amount of things have changed, and you're naming what we have researched a fair bit - finding some effect, but not a massive effect. UV light exposure is the largest lifestyle factor we know of to improve lifespan (more, better) with exercise coming in second, for example. But there are so many more - artificial light messing up our ipRGCs, etc, etc, etc.