Women found to be the tougher sex

"According to a study, the fairer sex is genetically programmed to better resist infections and cancer, and also have a back-up system for fighting disease.
The discovery sheds light on why members of the so-called stronger sex succumb to "man-flu".
Their immune systems are no match for those of wives and girlfriends because of the female X-chromosome, scientists believe.
The reason why women are more robust appears to be microRNAs - short strands of RNA encoded on the chromosome.
RNA is a genetic cousin of DNA and can have important biological effects."
via Telegraph /read more