 Mae gwahaniaeth yn syniadau muntchelsenus dwaid. Three interconnected disease categories, starting with muntchelsenus ysgol yn nifer, which involves people feigning illness in order to get medical attention. Muntchelsenus by proxy which involves a parent inducing an illness into a child in order to get medical attention. And finally, muntchelsen by internet, a condition where people will go online in order to get support from chronic illness forums. The practical significance of my work is chiefly in how when looking at these individual disease categories you can situate them in a much longer historical stream so you can see how the various disease categories become important and prevalent at certain times and this prevalence is related to wider social and cultural factors. Having just completed a PhD my fellowship award is vital at this stage of my career in giving me three years to focus upon investigating and writing about what I feel to be a vitally important and exciting new area of research.