Insulin resistance (HOMA-IR)
HOMA-IR units
Metabolic inflexibility proxy. Crosses into mood, energy, and long-run health costs.
HOMA-IR is an observational workhorse. Lifestyle interventions move it. Direct arrows from HOMA-IR to income or mate choice are almost always confounded by education, BMI, and health-care access.
Also called HOMA-IR, insulin.
Incident edges
MECHANISM
Randomized trial · High confidence
Sleep duration and regularity→Insulin resistance (HOMA-IR)
You can buy a continuous glucose monitor or you can sleep. One of these has a trial behind it.
MECHANISM
Randomized trial · Moderate
Ultra-processed food intake→Insulin resistance (HOMA-IR)
UPF raises intake in a ward trial. That is a food-environment effect, not a moral one, and it is not a career steroid.