What are the immediate changes in our body after donating blood?

Immediately after donating blood a person covers in mild sickness, nausea, faint feeling, and these symptoms usually disappear within 3 days after blood donation.

• Blood viscosity will be decreased

• According to University of California, burn approximately 650 calories for one pint of blood donation

• In next 24 hours your body starts generating the same amount of blood donated.