The evidence is convergent. Multiple independent sources reach the same conclusion, the underlying mechanism is well-characterized, and even the field's most cautious voices treat it as worth doing.
Insulin growth factor 1 was popular in the neuroscience community as an area of focus because of its ability to trigger improvements in memory and learning after exercise. And indeed exercise triggers both the release of growth hormone and IGF-1. IGF-1 seems responsible for a lot of the effects of improved memory.
Every Sunday: the week’s new conflicts and verdict changes — and nothing else.
Native comments, Twitter mentions, and Reddit threads about this claim — surfaced together so the conversation isn't fragmented across platforms.
Bookmarking — the dossier-vs-overview split is the right call. Most of the time I want overview; sometimes I want receipts.
Would love a "what would change this verdict" RSS feed. Sign me up if it exists.
so um yeah igf like you you always hear about I want to lower igf-1 but you you know it's actually like important for the brain and important for muscle and and the way to get it to the brain is through exercise like that's that's that's known and it's been shown again in human studies as well
My take is you want IGF-1 to go to the right place (ie. muscle/brain) which things like exercise have been shown to do.
IGF-1 plays an important role in muscle growth, muscle repair, and also it crosses the blood-brain barrier, and plays an important role along with brain-derived neurotrophic factor for growing new brain cells.