Read somewhere that a BMI of under 18.5 can lead to getting ill more often due to the immune system being less strong but how does weight contribute to your body being able to fight illnesses?
In: Biology
That depends on many factors like body composition, general fitness, age etc. But generally the less fat stores you have the less energy your body has to fight off any illnesses that are thrown your way. If your body is using up all and any nutrients just to keep itself ticking over it won’t have much energy left to ramp up the immune system when you’re attacked by a virus or whatever else.
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