You are creating a causal relationship, when they are coincident.
The cancer that is killing your sister is causing her weight loss. I don’t mean to be grim—vaping doesn’t cause weight loss like that.
She doesn’t have cancer. If you aren’t going to read what I’ve written accurately, please don’t bother to answer me.
Extreme COPD (Chronic pulmonery obstructive disease) makes it so difficult for a patient to breathe they burn more calories breathing than they can take in. Scientific fact. Please be my guest and verify that on the web.