— although the human body does have its limits, and it isn’t sustainable enough to become a full-blown side gig. However, as this procedure becomes more and more mainstream, people are donating plasma ...

You can sell a lot of things to make extra cash — clothes, furniture, books, etc. Pretty much anything legal that people are willing to pay for. But the next time you want to sell something to make ...

How much you make depends largely on your weight and the volume of plasma extracted. Some donors can make an extra $500 or more each month if they sell their plasma twice weekly.

Add Yahoo as a preferred source to see more of our stories on Google. A man donates his plasma at the B Positive plasma center in Holmes, Pa., in January. (Hannah Yoon for NBC News) Inside a suburban ...

The Blood Service is forecasting the country's plasma stock will reach critical levels and is calling for 25,000 donations by the end of November.