Tag: prolong
Little-known effective ways to prolong sexual intercourse
A longer sexual relationship is not a dream. It takes some time to have sexual intercourse in which both parties eventually part with pleasure. If you’re afflicted with short-term sex,…
Add another coronavirus antigen to prolong the effectiveness of vaccines?
The S protein was chosen as the vaccine antigen but its frequent mutations weaken the antibodies induced by the vaccination. At the University of California, scientists are proposing another antigen…