I think that this is not true. Cancer is caused by a mutation in the DNA, being skinny will not help you avoid it.
Answer:
I would say washing your hands.
Explanation:
It depends on what pathogen is being transferred, but most contact with people is done through hands (handshakes, hugging, etc.), so washing hands constantly with anti-bacterial soap kills any germs that you may collect throughout the day.
<span> It is removed by the lymphatic vessels.</span>
Maybe something you're interested about? Some examples: Cancer , health issues, disease, etc.