you can stimulate autophagy with intermittent fasting (between 17 and 72 hours). Autophagy is the body’s way of cleaning out damaged cells, in order to regenerate newer, healthier cells. It's like changing the oil in your car.
Autophagy helps to regulate cytokines and it also makes you more insulin sensitive.
"The immune system plays a critical role in fighting off SARS-CoV-2 infection, however, deregulated immune response may result in immunopathology and impaired pulmonary function [7,8]. Autophagy is a potential cell surveillance system that plays a pivotal role in the regulation of both innate  and adaptive immunity . Induction of autophagy can potentially promote the immune system [11,12]. Targeting the immune system as well as the cellular processes (here, autophagy) that regulate immunity could offer a strategic tool against SARS-CoV-2 infection."
Dr Mindy's video: