Losing virginity can improve your self-image,  according to Penn State researchers - if you are a college-age male.  On average, college-age males become more satisfied with their appearance after first intercourse while college-age females become less satisfied.

Overall the researchers found that women became happier with their physical appearance from first to fourth year in college, and men became less satisfied with their appearance over the same time period. However, the researchers found the opposite directly after students had sex for the first time; males were more satisfied with their appearance and females were less satisfied.   
In Australia, babies born since 1971 have had drops of blood taken, which are then tested for a variety of genetic conditions such as cystic fibrosis. 

It has been an effective health check, according to Dr. Diana Bowman from the Melbourne School of Population Health, but because there are no laws which define the ownership, storage and use of those blood drops, it could threaten public trust in newborn screening (NBS) programs in Australia. The tests and what is done with the blood afterwards raises many legal questions.