Lactate acts as a signal that can change cell redox and activate pathways.

“lactate is distinguished from pyruvate and lactate is um reduced it has more hydrogen on it there one more hydrogen than pyruvate so that double that keto Bond on pyruvate a double bond oxygen uh becomes uh hydrogen so it's more reduced Now when you start putting in this reduced equivalent into the blood it's going to go around the whole body and change redoxin a number of tissues all the tissues basically to which it's going to where the lactate is going to go so lactate is is a powerful signal and it works in diverse ways to activate various Pathways in including by changing cell Redux”