Body fat can trick the immune system into ignoring vaccines
Anatomy
Excess fat cells can act like a biological static-generator, drowning out the vital signals that vaccines send to your immune system.
Recent research into vaccine efficacy reveals that adipose tissue, or body fat, does far more than store energy; it actively communicates with the immune system. In people with obesity, these fat cells produce a constant stream of inflammatory signals that keep the body in a state of permanent low-level alert. When a vaccine arrives to teach the body how to fight a specific virus, the immune system is often too exhausted from this chronic inflammation to pay attention.