Tanning Beds are second because the dose is controlled so the result is more predictable than sun (synthetic buffing agent)
Additionally, insulin has anabolic effects on muscle by inhibiting proteolysis and promoting protein synthesis
For cardiovascular health Both drugs are expected to show cardiovascular benefit based on their metabolic effects
Muller TD, Sullivan LM, Habegger K, Yi CX, Kabra D, Grant E et al
Subjects were excluded if they had clinically significant concomitant diseases or disorders, clinically significant abnormal values in clinical laboratory screening tests, any history of gastrointestinal surgery, had used any prescription or non-prescription drugs within 3 weeks prior to dosing of trial product (except hormone replacement therapy, contraceptives and occasional use of paracetamol in the food-effect trial), were smokers (dosing conditions trial) or were not able or willing to refrain from smoking while staying at the clinic (food-effect trial), or if they were pregnant or breastfeeding women (food-effect trial)
Most of the visible work during this week is happening below the surface: fibroblast activation, collagen synthesis, and the early phase of structural remodeling