Andrew Huberman· PhD
When people are sick, they have cancer, right? GDF-15, this growth differentiation factor 15, it's which is a protein, it's a cytoine. Uh, it's secreted by cells when energy can't flow properly in mitochondria. So, if the cell is burning energy faster than it can sustain, >> uh, it it will start to secrete GDF-15. So people with cancer uh who end up developing cexia right their muscles melt away they tend to have very high GDF-15